What Does A Carbon Filter Do In A Grow Tent

Carbon Filters: Should I Use One in My Grow Room?

So you’ve finished building up your grow room and have begun cultivating some plants in it. Congratulations! You may not be aware of it at first, but gradually you will discover that your growing area has a distinct odor. Chances are you’ll want to keep the smells of your grow area to yourself, whether it’s the strong fragrance of your plants or a slight stench from the humidity in the air. Use of a carbon filter in your grow room is highly recommended, especially if you want to keep the operation’s location secret or if you just want to keep the odours from your growing space out of your home.

What Are Carbon Filters?

A carbon filter, like most other air filters, is intended to cleanse the air that enters it while also exhausting new air into the surrounding area. Using carbon media, these metal cylinders are filled with air and connected to a high-output fan in order to remove smells and particles from the air in your growing environment. In order to accommodate the size of your grow room and the quantity of filtering you want, carbon filters are available in several different sizes and configurations. When your grow room is correctly set up, all of the air from your grow room will pass through the filter, and the scents in your grow room will be completely eliminated.

How Carbon Filters Work

It is, in fact, pretty straightforward: CO2 filters operate by capturing and retaining undesired odors (odor particles) and dust particles, allowing only clean and fresh air to pass through the tube. Carbon filters are made of a variety of materials, however the majority of them, including Yield Lab carbon filters, are made of charcoal. Porous in nature, it may be utilized for a variety of applications ranging from removing specific gases from the air to lining face masks and other protective gear.

Adsorption, which is the act of capturing molecules from the air, is possible through the use of these holes.

Of course, air does not simply float into the carbon to be filtered; it must first pass through the carbon.

In order to prevent dust and odor molecules from escaping or spreading outside your grow room orgrow tent system system, the fan draws in all of the air in your grow room and pushes it through the filter, which effectively blocks the air from leaving your grow room.

Using a Carbon Filter in Your Growing Area

The following are some crucial considerations to bear in mind when it comes time to begin employing a carbon filter in your growing environment:

Find the Right Size

Despite their similarities, all carbon filters are not created equal. Carbon air filters come in a variety of sizes, depending on the size of your growing space and the cubic feet per minute (CFM) value of your exhaust fans.

The size of your carbon air filters will depend on these factors. You will need to complete the following procedures in order to calculate the CFM value:

  • Obtain the dimensions of your grow room or grow tent: height, breadth, and length. In order to determine how much space you’ll be occupying, multiply these numbers by one another, as follows: Calculate the value by multiplying it by the current exchange rate (the number of times you want the air to be completely exchanged each hour). Once per minute multiplied by 60 equals a continual flow of fresh air
  • To achieve this, multiply by 60 equals once every minute
  • Your CFM is calculated by dividing this value by 60.

The most accurate technique to determine what size carbon grow room filter to use is to make sure that the CFM value of your filter is either equal to or lower than the CFM values of your grow room and exhaust fan combined. Consider the following scenario: you have a5ft x 5ft x 8ftgrow tent:

  • Multiply5x5x8. This amount is equivalent to the cubic feet of your growing space (200)
  • The cubic feet (200) are multiplied by the number of exchanges every hour (60), resulting in a total of 12000
  • A total of 200 CFM may be obtained by multiplying that amount (12000) by the number of minutes of exchange in an hour (60). Take the 200 CFM that you now have and seek for a filter that meets or surpasses that CFM

As a general rule, it is usually preferable to exceed your CFM requirements rather than to fall short. If you purchase a smaller filter than you would use, the carbon will be depleted rapidly.

Set Up Your Filter

Once you’ve determined what size filter you’ll need, you’ll want to be certain that it’s set up correctly. In order to get the most out of your carbon air filter, you must make certain that it is filtering all of the air that is circulated throughout your grow room. This implies that you must connect it to a grow room fan and connect ducting to it, and then carefully seal it with duct clamps after that. Place the fan and filter above or near your plants to maximize air circulation. Then, place the fan so that it draws air from your grow room and exhausts it into the filter, as shown.

Maintain Your Carbon Filter

When all of the pores, or adsorption sites, in the carbon are completely occupied, your carbon filter will no longer be able to catch any more molecules in the water. Maintaining your carbon filter is as simple as making sure it is cleaned on a regular basis – generally once a month. To clean your filter, you should first remove it from your grow room and shake it to remove any dust and debris that has accumulated within. Note: Contrary to common perception, cleaning charcoal in a filter with water and soap might actually have a negative impact on the filter’s performance.

You will eventually reach a point at which your carbon filter will be unable to trap as many molecules as it used to be able to.

If you begin to detect an unpleasant odor even after cleaning the filter at home, it is likely that you need to replace the filter.

Should You Use a Carbon Filter in Your Growing Area?

The answer to that question is an emphatic one. For keeping the stench from your growing area out of your home and away from your neighbors, carbon filters are the most effective alternative. More significantly, they are the most effective method of ensuring that even the most fresh air is used by your plants for growth. It’s important to note that there are various short-term treatments available, such as air purifiers or neutralizing sprays and powders, that you can employ. Having said that, these instruments will not totally eliminate the odor from your growing operation, nor will they completely eliminate any dust particles that may have escaped from your grow space.

Carbon filters are the most effective way to ensure that your grow room is completely odor-free while also preventing odors from escaping your growing environment. You may begin by locating the most appropriate filter for your grow room by visiting this page.

What Is A Carbon Filter and How Does It Work for Grow Room?

Home»Environment» What is a carbon filter, and how does it function in a grow room environment? 9841Views0 Strong ventilation is required for grow tents. And producers have a variety of options for ensuring that this occurs. However, there are aromas and odors within the grow tent that you don’t want to come out and make your house smell like a hotbox for a long period of time. Carbon filters come to the rescue in situations like this when it comes to odor control. We’ll walk you through the basics of carbon filters in this 2000+ word post.

Let’s get together with a cup of coffee and learn about grow room carbon filters.

What Is A Carbon Filter?

In an isolated space, the carbonfilter is a component of the air exhaust system (grow tent, grow room, greenhouse etc.) They contain beds of activated carbon (charcoal) with a large number of pores embedded within them. Image courtesy of Amazon.com Using a carbon filter to evacuate the air from a grow room or greenhouse retains odor, dust, spores, pollen and other airborne containments that would otherwise pass through the filter. This ensures that your grow room is devoid of odors, hazardous chemicals, and unsanitary containments.

What is a Carbon Filter for in Grow Room?

We should first understand about the functions of carbon filters in a grow room before diving into the details.

Odor Management

One of the most difficult things for a grower is to keep the odors from lingering. And this is especially true if you don’t want your neighbors to find out about your newfound “passion.” Fortunately, a carbon filter is capable of trapping all of the odor-causing particles in the air provided the air is introduced over the filter in the appropriate manner. In order to do this, exhaust fans must be installed to pull in air and pass it through a filter before being released into the environment.

Taking Impurities Out

Aside from the proper temperature, humidity, and nutrition, growing plants require clean, fresh air to flourish. Impurities, such as airborne infections, can cause illnesses in plants and reduce the overall yield of a plant’s crop. And activated carbon has the capacity to remove such contaminants from the air through a process known as adsorption. In order to allow your plants to breathe freely, you must install a ventilation system in which all of the air is drawn through a carbon filter on a regular basis, as described above.

To Cut Your Bills

There are several different types of air filtering systems. And some of them might set you back a lot of money. However, grow room air carbon filters are the least expensive of them, as they are not too expensive while still performing admirably. Because indoor growing consumes a lot of energy, a good carbon filter can help you save money on your electricity bill.

Quick and Easy to Setup

Another advantage of carbon filters is that they are quite simple to put in place.

If you think about it, a carbon filter and fan combination may be installed in minutes at the proper location. All that is required is that you set it up at the proper height and attach it to the ducting using clamps.

Types of Carbon Filter for Grow Room

Air filtering in grow tents may be accomplished in a variety of ways. The selection of grow tent filters is made based on the size of the tent, the number of plants, the ventilation system, and the money available. Filtration media, fan-filter combination, and filter diameter are some of the factors that might be considered while selecting air filters for growing environments. Let’s take a closer look at each of them-

Based on Filtering Medium

Carbon beds are the most practical and efficient type of grow room air filter available today. To be more specific, activated carbon filterbeds. Charcoals are processed chemically and thermally to transform them into activated carbon, which is then used to make the filters within. Pore count in activated carbon may reach millions per square inch, which is one of its unique characteristics. Because of this, each gram of activated carbon has a surface area of 2000-4000 m2, which allows it to attract dust and odor-causing particles to itself.

Pick of the Day: Amagabeli Carbon Filter, 6 inches in diameter

Non-carbon Air Filter

There are a few more filters that do not employ carbon components, such as particle cabin air filters, that are worth mentioning. Despite the fact that carbon cabin filters are more expensive, particle cabin filters are not as effective as they are. Particulate cabin air filters, for example, are solely capable of removing dust contained within the cabin. However, activated carbon filters remove everything that particle filters remove, as well as odors and exhaust gases from the vehicle. If you don’t have enough space to house a carbon filter, you may consider putting the carbon filter outside of the container instead.

Based on Filter-Fan Combination

These are more like single carbon filters that you might want to consider purchasing as replacements for your existing one. When purchasing such single filters for your system, bear in mind that the CFM rating, the diameters, the flanges, and the dimensions must all be the same as well (both length and diameter). Make certain, however, that the model you choose has a pre-filter included. The VIVOSUN 4 Inch Air Carbon Filter is our top pick.

Carbon Filter-fan Combo

For the majority of growers, a filter-fan combination is the ideal option. Because the fan and the filter are designed to work together, the process of adjusting and installing them is as simple as possible. The fan-filter pair is available in a variety of configurations, including those with speed controllers and rope hangers. This type of package can be referred to as the “360-degree ventilation solution for any grow system.” VIVOSUN 6 Inch 440 CFM Inline Fan with Speed Controller is our top pick (when equipped with a speed controller).

Based on Diameter

Carbon filters with an opening size of 4 inches have the smallest opening size.

They have CFM values ranging between 150 to 250 CFM. And such filters are suitable for 44, 47, or 48 tents, where you may grow 4-6 plants in a 44 configuration (ScrOG style). Pick of the Day: iPower 4 Inch Carbon Filter for Indoor Air Quality

6” Carbon Filters

Carbon filters with 6″ diameters are capable of extracting air at a rate of around 400CFM. In the event that you just want to use one carbon filet in your 8×8 or 10×8 grow chamber, this is the one that you should consider using. Pick of the Day: Filter 701005 Phresh 701005 Filter

8” Carbon Filters

8-inch filters are more suited for grow rooms than for small or medium-sized grow tents since they are more compact. Because they have a CFM rating of around 600-700 CFM, they can be fairly sufficient for grow rooms up to 12×12 feet in size. Pick of the Day: VIVOSUN 6 Inch Carbon Filter for Air Purification

10” Carbon Filters

Carbon filters in the 10″ size are the more experienced versions of the 8″ size. Growers are more likely to remain with models that have an air extraction rate of 1100-1200 CFM if they can get that rate. Pick of the Day: Phresh Filter is an acronym that stands for “fresh filter.” 10 in. x 24 in. 850 cubic feet per minute Filter with Carbon

12” Carbon Filters

This type of carbon filter is the biggest of all the carbon filters available. Generally speaking, when you want ultra-efficient air extraction at a rate of 1400 CFM or above, these are the models to choose from. Pick of the Day: Phresh Filter 12 in x 24 in 950 CFM Phresh Filter 12 in x 24 in

How Does A Carbon Filter Work in A Grow Room

When it comes to combating allergies, viruses, harsh pollutants, and smells, carbon filters are unbeatable fighters on the battlefield. But how exactly do they function? As the name implies, each carbon filter has layers of activated carbon beds (charcoals) to remove impurities from the water. The pores on the surface of the carbon particles give a large surface area. The surface area of activated carbon is 3000 m2 per gram of the material. The issue now is, what exactly is activated carbon? Activated carbons are the same as conventional charcoals, but after going through a procedure, they get the ability to trap gases.

  1. This results in the formation of a lattice of pores in the carbon.
  2. As you may recall from earlier reading, a single gram of activated carbon may have an interior surface area of hundreds of square meters, which is enormous.
  3. The porous nature of this surface attracts contaminants and allergens from the surrounding air, which is a bad thing.
  4. The carbon bed is able to absorb a variety of organic substances as a result of this procedure (gas, dust).
  5. And what you get is a grow tent that is free of pollutants and odors.
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Carbon Filter Cfm Calculator for Different Grow Tent Size

We’ll learn how to calculate the appropriate size (capacity) of carbon filter for your grow tent at this stage in the discussion.

You must pay close attention to the calculations that we are going to perform, since they are really important.

Step 1: Determine Your Grow Tent Air Volume

First and foremost, establish the entire capacity of the grow tent in cubic feet. This will inform you of the amount of air that is currently present within the tent/room at any particular time. The formula is straightforward: The volume of a grow tent is equal to the sum of its length, width, and height. For example, 10 feet by 10 feet by 8 feet equals 800 cubic feet.

Step 2: Decide How Much Air to Extract In Every Minute(CFM)

After that, you’ll have to determine how many times you want to completely recirculate the air per hour. For small tents, it might be 40- 60 times in an hour, depending on the size (once in every 1.5- 1 minute). For bigger grow tents, such as 1010, 88, and 48, we like it to be 30-20 times in an hour rather than 20 times (once in every 2-3 minutes). Let’s imagine we want to empty the air in our 10×10 grow tent once every three minutes. As a result, the air volume to be extracted in each minute (CFM)-the air volume to be extracted (for the fan) in 1 minute= 800 cubic feet/3= 266 CFMSo, the fan should be able to extract the air at a rate of 266 CFM.

Step 3: Calculte The Carbon Filter CFM

It’s time to figure out how much capacity the carbon filter and the fan can handle at this point. In this regard, we would like to inform you that the use of a carbon filter on an extractor fan reduces the effectiveness of the fan. To be more specific, the use of a carbon filter reduces the effectiveness of the fan by around 25%. To allow the fan to extract the appropriate volume of air in each minute, you must install a carbon filter with a 25 percent higher CFM rating than what is currently available.

hings to keep in mind-

  1. The frequency of air extraction may vary depending on the size of the tent and the types of plants present
  2. Because of the differences in size, diameter, and connector type, the resistance of a carbon filter to the performance of a fan might vary. The effect of ducting resistance on the performance of a fan may also be dependent on the length and kind of material used. For example, a 25-foot length of straight hard cast ducting may result in a loss of 3 percent of the fan’s CFM efficiency. The effect of the fan’s resistance on its performance may also be dependent on the angle of the ducting. As an illustration, a 90-degree curve may result in a loss of 1 percent to 4 percent of total efficiency.

However, here is a carbon filter size calculator that has been pre-formulated. I was hoping you’d have a few minutes to search it up for me. Additionally, this video about carbon filter size may be of assistance-

Where and How to Use Carbon Filter in Grow Room?

The majority of growers choose to place the carbon filters within the tent, where they may be paired with the ducting and inline fans to provide the best results. For those who have limited capacity to accommodate a full-size air filter, carbon filter placement may be done outdoors as well as inside. Assuming, however, that you will be placing it indoors, here are the easy steps to installing a carbon filter: Step 1: Remove the filter from the packaging and place it on top of the pre-filter (if applicable).

Make certain that the exhaust ducting, filter, and exhaust fan are all connected in a single line.

Check to see that the connection is completely airtight.

Turn on the fan and keep an eye out for any leaks during the process.

Carbon Filter Maintenance 101

Carbon filters are mechanical devices that play a significant part in the control of odors and pollutants.

Maintain the following maintenance guidelines in mind to keep them in peak condition:

Clean the Filter

Cleaning carbon filters is an essential activity if you want to get the most out of your carbon filter. First and foremost, remove it from the grow chamber and place it in an open environment. Shake it firmly to get rid of any debris or dust that has accumulated within. Now, sprinkle water on the carbon beds and submerge them in the water to complete the process. Don’t forget to combine the water with a little soap before placing the carbon filter in the container! Keep it submerged in water for 15 minutes before removing it.

More detailed methods may be found in our comprehensive cleaning guide.

Vacuum and Dry Up

The use of a vacuum cleaner might be an option if you don’t want to deal with the filth of cleaning it off every month. Every alternate week, vacuum-clean the activated carbon beds to remove any extra carbon and dust particles that may have accumulated. Don’t forget to remove the carbon bed from the vacuum cleaner before cleaning it.

Don’t Use It Beyond It’s Lifetime

A carbon filter will not provide long-term odor management if you are serious about odor management. It will not last forever. It has a limited lifespan, much like any other electronic equipment. And it’s preferable if you make the modification as soon as possible after that. Carbon filters that are used on a regular basis are expected to last 1-1.5 years. When purchasing a carbon filter, you should keep an eye out for how long it will last before replacing it.

Can You Grow Without Carbon Filter?

Many first-time growers have inquired as to whether or not they require a carbon filter in their grow environment. After all, the question itself follows up with another question: “Do you worry if the stench within the grow tent escapes and spreads over the surrounding area?” If the answer is no, there is no other option except to incorporate a high-quality carbon filter into your growing environment. A carbon filter may not be necessary if you are growing outdoors, where you may take the air without filtering out the scents and simply leave them in the environment.

I’m Saleh, and I’m a blogger that enjoys doing home improvement projects on the side.

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Do I Need A Carbon Filter In My Grow Room?

Disclosure of Affiliate Programs-Please keep in mind that we may collect commissions if you click on one of our links and make a purchase. This, however, has no effect on our reviews and comparisons of products. We make every effort to maintain a fair and balanced environment in order to assist you in making the best decision for you.

Is A Carbon Filter Necessary?

To immediately respond to the question above, the answer is No. Using a Co2 filter (also known as a carbon scrubber) is not required in terms of technology. A perfectly fine crop may be grown in your grow tent or grow room even if you do not have a carbon filter installed. Carbon air filters, which are great odor neutralizers, are required by the majority of indoor growers in addition to a grow lamp and an indoor grow tent.

An air carbon filter is a must-have for any indoor grower who wants to keep their cannabis growing business under wraps or who just wants to avoid the characteristic weed scent.

How Does The C02 Filter help?

To swiftly respond to the question above, the answer is No, unfortunately. It is not strictly essential to use a Co2 filter (also known as a carbon scrubber). You do not need a carbon filter in your grow tent or grow room to produce a perfectly good harvest of vegetables. Carbon air filters, which are great odor neutralizers, are required by most indoor growers in addition to grow lights and grow tents. An air carbon filter is a must-have for any indoor gardener who wants to keep their cannabis growing business under wraps or who just wants to avoid the unmistakable weed odor.

  • Indoor Air Purification – A CO2 filter is capable of preventing pollutants from entering your grow tent and perhaps harming your plants. A good carbon filter will assist to decrease or even remove the unique marijuana smell caused by terpenes, which can be unpleasant in some situations.

How Does A Carbon Filter Work?

The great majority of carbon dioxide filters (also known as “activated charcoal”) rely on activated carbon for its filtering and cleaning. Small holes or pores in activated carbon are intentionally created throughout the manufacturing process, resulting in more holes per filter. In a nutshell, more pores in a filter equate to higher filtering of water. If you’re interested in learning more about activated carbon, you can find further information in the appendix. If you are familiar with the function of a sponge, you will be familiar with the principle behind a carbon filter.

Terpenes are the contaminant in the case of a weed, as opposed to other plants.

How Can You Gauge The Efficiency Of A Carbon Filtering System?

When it comes to air filters, the CFM (cubic feet per minute) rating is the benchmark that you should be looking for. The amount of cubic feet per minute that a carbon scrubber can filter is measured in cubic feet per minute (CFM). The number of cubic feet per minute (CFM) required depends on the size of your grow space. As a result, higher CFM does not always equate to better performance. This article provides a suggestion on the CFM size you should buy based on your needs.

Top Brands

The Phresh Carbon Filter is one of the most highly regarded filters available on the market today. The Phresh Filter is a costly, but manageable, investment. A HEPAfilter, on the other hand, is not included.

Proper Grow Area Ventilation System

For your grow tent or grow room, in addition to a high-quality air carbon filter, you’ll need a reliable ventilation system to keep the environment comfortable. The veniliation system of the grow tent generates a vacuum-like effect in your grow area as it tries to suck the harmful air out of the growing environment. Otherwise, the general environment would get stagnant if there was no ventilation system in place. Another point to mention is that in addition to increasing air circulation, ventilation for grow rooms may serve a variety of additional functions.

A appropriate ventilation system includes a circulating fan as well as an inline fan to circulate air. Both of these factors work together to allow air to flow, which in turn allows the filter to do its function. The following characteristics of grow tent or grow room ventilation will be present:

  • Circulating Fan or Oscillating Fan – The purpose of a circulating fan is to simulate the winds that your plants would receive if they were growing outside. The number of grow tents and the amount of electricity that you will require will be determined by the size and number of grow tents that you have. Exhaust Fan or Inline Fan- The inline fan is used to draw in fresh air while exhausting stale air through duct work. An inline fan in conjunction with a carbon filter may effectively eliminate odors from the air coming from a growing area.

Final Thoughts

As previously noted, a charcoal filter is not always necessary. It should, however, be essential for all indoor growers who reside in urban areas or who have a lot of visitors. Consequently, conduct thorough study and select the most appropriate option for your specific scenario.


Ozone generators are sold as a device for controlling the quality of the air. Some of the manufacturers claim that their products will improve both the air quality and the management of odors in the environment. Whether or not they function, and to what extent you should utilize them in your grow room or orgrow tent, is the question.

How Do They Work?

It creates ozone by splitting oxygen molecules into a single atom, which is then released. This single oxygen atom will then undergo a transformation into additional oxygen molecules, which will result in the formation of Ozone. At the moment, either electricity or UV light is used to accomplish the conversion.

Is Ozone Dangerous?

In fact, consuming an excessive amount of it might cause lung damage, which can result in chest discomfort, breathing difficulties, and sore throat. Individuals who suffer from asthma, chronic obstructive pulmonary disease (COPD), or other respiratory ailments may be particularly vulnerable.

Do They Help With Air Quality?

According to the EPA, no. According to the Environmental Protection Agency, ozone levels that do not exceed the prescribed acceptable limits will not prevent any indoor air contaminants from being eliminated. Obviously, ozone generators are only intended to create quantities of gas that are considered safe. According to the Environmental Protection Agency, the only way it would be effective would be if it caused dangerous quantities of ozone. Do They Provide Effective Odor Control? The Environmental Protection Agency makes no mention of an ozone generator or odor control.

Final Thoughts

Make an effort to avoid using ozone generators and instead invest your money on bettergrow tent ventilation as well as a carbon air filter.

What Is Activated Carbon?

As previously said, activated carbon is constructed with more pores than ordinary carbon, allowing it to absorb odors more effectively and filter out more contaminants than conventional carbon. For hundreds of years, charcoal has been employed as a filter. In reality, carbon filters were utilized in the manufacture of gas masks during World War I. The conclusion is that, given the fact that activated carbon filters may protect soldiers from mustard gas or another chemical, it is likely that they can also serve as an efficient odor neutralizer.

After that, it is fried a second time at temperatures above 800 degrees.

In addition, they have been treated with a chemical that causes the carbon to have even more holes than non-treated charcoal. It has the ability to absorb both air and water. Carbon filters, which are almost universally used for air filtration and odor control in grow rooms, employ activated carbon.

Do You Need Carbon Filter For Grow Tent? [Answer with Explanation]

Do you have a problem with the smell of your grow tent? Have you tried everything, such as air fresheners and other sprays, to no avail? Finding that there is no way out! Who is the real perpetrator here? When you grow plants inside, little particles of water plants and fertilizers remain in the air for a longer period of time in the surrounding environment. There is just ONE answer to the odor problem. That is a carbon filter in action. Come with me as we read this article to find out why you require it!

  • Almost all grow tent configurations need the use of a carbon filter, which is a must-have accessory.
  • Additionally, it is effective in eliminating allergens as well as hazardous chemical extracts created by fertilizers and sprays.
  • No other system can compete with this device when it comes to air filtration.
  • Because outside plants are always exposed to fresh air, they never require the use of this equipment.
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What is a Carbon Filter

It is, as the name implies, a device that removes aromatically hazardous particles from the atmosphere. The activated carbon filter is a well-established technology that treats a wide range of airborne contaminants, such as cigarette smoke and pollen. Carbon filters are made with high-quality carbon granules and pellets and are housed in chemically resistant casings to ensure long-term performance. A granule or pellet dispenser is really comprised of an enormous cylindrical chamber with a duct-like entrance that is loaded with granules or pellets.

These are the only odor control options available for grow room setup, since other technologies have a difficult time competing with stink.

How Does Carbon Filter Work

The architecture of the filter has now been thoroughly explained to you; now it is time to learn how it functions in a growing environment. It is the adsorption principle, rather than the absorption concept, that operates in activated carbon filters. These particles are drawn from the air and become entrapped on the surface of the charcoal’s pores, resulting in the formation of an extremely thin film coating. Eventually, all of the pores are totally filled. When the charcoal in your filter becomes compact, it may result in no odor elimination at all.

If you have a grow tent, the best arrangement is to attach the extractor after the filter.

The air should go from the filter to the fan and then out to the outside or circulate within the tent as needed. Because it is important to circulate filtered air back to the plant, passive airflow is preferred in the optimal configuration.

Why Do You Need a Carbon Filter For Grow Tent

Simply said, you require a filter for no apparent reason! It is unavoidable in the case of your grow tent arrangement. Although there are more than ten good reasons to have a filter in your grow room, there is not a single compelling argument in favor of not having one. As a result, if you continue to grow your plants without using this gadget, you will not receive the desired return from them in the end. Install one now to ensure that your plants flourish in happiness! You should be aware of a few warning signs that indicate that you require a carbon filter urgently.

  • Is the odor in your grow room unbearable? Are your plants not growing as well as they should and their color is fading? Is the area outside of the grow room usually smelling bad? Are there persons who suffer from allergies or respiratory diseases who live in close proximity to a grow tent?

If you ask yourself these questions, you will be able to determine whether or not you require a filter. Right?

What Does Carbon Filter Do in Grow Tent

Why is it necessary to filter in every grow tent? What kind of effects does it have on the plants there? When purchasing a filter, gardeners frequently ponder the answers to these questions. Now let’s look at how a filter may safeguard both your plant and the surrounding environment of your plantation.

  • It eliminates odor
  • The filter is specifically engineered to prevent odor particles from entering its pores. As a result, the air that comes out of it is now clean and beneficial to plants. It promotes the circulation of fresh air: Without a filter, only air will flow through the tent, not fresh air, if there is no filter. When new air emerges from the filter, fans circulate it, ensuring that it reaches the plants time and time again. It is effective at trapping dust particles: Dust particles are also captured in the pre-filter cover as a result of its design. This is how a carbon filter may protect your plant from dust-particle infiltration. Some filters are much more sophisticated, and they may capture dangerous allergen extracts as well.

Benefits of Carbon Filter For Grow Tent

Several considerations must be taken into account while creating an artificial habitat for plants to flourish in an indoor setting. In a natural situation, plants have a tendency to release gases into the atmosphere. Indoor plantations, on the other hand, might be troublesome if you don’t make enough arrangements to release an odor that causes carbon dioxide and other gases to be released.

  • Filtering out odor particles created as a result of fertilizer, water, or carbon dioxide emissions during photosynthesis is accomplished by using a carbon filter. It not only keeps the interior of your tent odor-free, but it also keeps the outside of your tent odor-free. It reduces the odor of hydrogen sulfide or other toxic fertilizer extracts, which may cause allergy reactions in persons who live close. Some filters, when combined with an additional layer of pre-filter, are actually more effective at absorbing dust particles. The air quality improves as a result of this. They are simple to set up either outside or within the tent, and if you don’t have enough space outside or inside the tent, you can even hang them below the tent’s roof area. They have no direct effect on the growth of your plant, in contrast to other techniques of air purification. Thus, they are dependable and simple to work with
  • It is possible that they will endure more than a year if they are installed appropriately and carefully. Due to the fact that they do not require repair or other spare components, they are cost-saving gadgets. Carbo

Does Fan Can Do The Job of Carbon Filter

Will a fan enough, or will I still want a carbon filter in addition? Growers frequently find it to be a bit perplexing. The question is why they require a filter if they believe that fans can expel the odors from the growing environment. Yes, it is true that fans can simply perform the task of air circulation. If fans increase circulation, air cleansing is increased by using filters. It is not enough to just circulate air; it is also necessary to clean the air. The filter fan combination guarantees that only clean air is circulated throughout the tent.

In the same way, the filter is unable to perform the functions of the fan.

Does Carbon filterAffect The Growth of the Plant

Is it true that carbon filters have an effect on photosynthesis or plant growth? No, this technology has no direct effect on the crop in any way whatsoever. However, it has the potential to have an impact on them indirectly. The most important element influencing plant development is the quality of the air. With the installation of a carbon filter, you can ensure that the air surrounding the growing area is free of chemical odors, carbon particles, and other potentially dangerous fertilizer gases.

Your plant will use more carbon dioxide every day, which is not a good thing for the environment.

Your plant will continue to grow even if you are not around, but it will not be very pleased about it. Editor’s Notes: What is the best way to clean a carbon filter for a grow room? If you are already using a carbon filter, you must read this section.

How Long Does a Carbon Filter Last

Carbon filters typically have a lifespan of 6 to 12 months, depending on a variety of conditions such as temperature, humidity, setup, and others. Because rinsing is ineffective, the bad news is that you can’t reuse them once you’ve rinsed them. Once they are finished, you will have to replace them because there is no alternative remedy known at this time. However, if your environment is excessively dusty, dry, and hot, they may expire even before 6 months. Another issue that happens frequently when growers install the incorrect size of filter in their grow room is that the filter will likely expire more rapidly.

Filters of poor quality may not last as long.

List of Top 5 Quality Carbon Filters For Grow Tent

Finally, you’ve made the decision to get one. Wait a minute, think about the appropriate size and high-quality items. We’ve compiled a list of high-quality grow room filters that you can purchase for your setup. Hopefully, after purchasing one, you will see the promised outcomes as well as a higher return!

  • Air carbon filters include the IPower 4-inch Air Carbon Filter, Cool Grows 4-inch Air Carbon Filter, Amagabeli 4-inch Carbon Filter, TerraBloom 6-inch Carbon Filter, and the Grower 4-inch Carbon Air Filter.

Do You Need a Carbon Filter For Smaller Grow Tents

Do you use 2×2 or 3×3 grow tents for your production? Is it still necessary to use a carbon filter, or can you go without one? It’s critical to understand. You will always use a carbon filter while growing in a tent, whether you are growing in a little or large tent. The fact that you are growing in a smaller area has absolutely nothing to do with the filter you are using. Even a single plant kept inside with the goal of producing odor can do so. Despite the fact that it has little effect on plant development, it might have an impact on the air quality around you.

But first, understand how to properly fit carbon filters for your grow tent before making a purchase.

Carbon Filter Risk Factors

Keep these tips in mind in order to avoid any mishaps in the future. Although the filtration device itself is innocuous, a few environmental conditions can have a detrimental impact on its performance. Additionally, if it is not installed properly, it may cause issues. Let’s gain some points to lower the danger factors associated with your filter by passing through them!

  • Because of the increase in humidity, the carbon inside the filter condenses into a compact film. In this case, air will not be able to move through it, and odor will be returned to the grow chamber as a result of this. In order to avoid this problem, you should keep an eye on the humidity level. Extraction fans work harder when carbon is compacted, which increases their burden. When exposed to high temperatures, fans can become overheated and even catch fire. As a result, it is recommended to install a circuit breaker with fans in order to prevent fire or damage. The use of fertilizers and pesticides has the additional effect of forming a thick carbon coating that can prevent air from passing through it. Always choose a filter that is more powerful than the fan on your system. Consequently, the fan will not overheat as a result of excessive use. It is not recommended to set up a filter outside the tent since it might raise the temperature of the room where the tent is located.

Bottom Line

It’s time to finish up our discussion: YES, a filter is absolutely necessary for tent growth. You won’t be able to continue forward with your expanding projects until you have this equipment. It’s simple to set up and use. If you take excellent care of it, it may last for more than a year with proper maintenance. I would recommend that you conduct more research and thoroughly read the what size of carbon filter for grow tentarticle before placing your order. I’m hoping that there be no more queries about whether or not I should use a carbon filter in my grow tent.

Keep in mind to share your experience in the comment section.

How To Use Carbon Filters In Your Cannabis Grow Room – RQS Blog

Growing cannabis in one’s own house might be a stinky endeavor. Although the smell of cannabis buds is intoxicating, such skunky terpenes might give your recreational activity away to nosy neighbors. Learn how to utilize carbon filters to remove suspicious odors from the air while maintaining your privacy while growing. To learn how to create your own carbon filter in the comfort of your own home, simply follow our step-by-step instructions. Growing cannabis inside has a plethora of advantages over outdoor cultivation.

You will have greater control over your growing space, which will allow you to improve plant health, increase yields, and keep infections and pests at away.

Things can become very, extremely odoriferous.

While exposing friends and family to the distinctive aroma of cannabis may not be a problem, landlords and nosy neighbours are an another matter altogether.

After decades of searching for a remedy to this problem, growers have finally discovered a piece of equipment that is incredibly effective: carbon filters. Learn how these covert technologies may eliminate obnoxious odors and keep your cannabis grow a secret from the outside world.

What are Carbon Filters?

Carbon filters are essential in every indoor cultivation setting because they remove contaminants from the air. Additionally, these devices may be found in air conditioning and furnaces, where they aid in the collection of impurities while still allowing clean air to pass through. When it comes to cannabis cultivation, fragrant terpenes are the “contaminants” that need to be avoided. Despite the fact that these pleasant molecules are responsible for the taste and effects of cannabis, they also release a powerful scent!

The surface area of the filter is greatly increased as a result of these microscopic pores, allowing for significantly more room for chemical reactions and filtering to take place.

How Carbon Filters Work

Growing tents contain high concentrations of terpenes, which may be cleaned using carbon filters, which work on the concept of adsorption (the adherence of molecules to a surface). Because activated carbon has a significantly increased surface area, it is the ideal component for this application. To put things in perspective, a single gram of active carbon has a surface area of 3,000 square meters! Creating a vacuum in the grow environment is essential for ensuring that terpenes are able to flow through the filter.

Adequate suction will drive all of the terpene-rich air through the filter, preventing any of it from escaping via the edges of the grow tent’s venting system.

Growers can guide odourless air out of a nearby window or ventilation shaft by connecting ducting to the exhaust fan’s external output on the outside of the building.

Where to Put a Carbon Filter in a Grow Room

A grow tent’s carbon filters are normally suspended slightly below the ceiling’s level. To ensure that they are correctly positioned, follow the steps below:

  • Connect your filter to an exhaust fan with a CFM (cubic feet per minute) and duct diameter that are suitable with your filter. Using an airstrip or duct tape, securely attach the two devices together. Setup should be hung from the ceiling bars of the grow tent at the highest point feasible. The exhaust fan’s outlet should be connected to ducting, which should be taped in place. Feed the other end of the ducting through the opening in the side of your grow tent that has been assigned for it. Place the ducting outlet next to a window or ventilation shaft that has been left open.

How to Build Your Own Carbon Filter

Carbon filters are available from a variety of sources, including hydroponic stores, hardware stores, and e-commerce websites. Making your own, on the other hand, may save you money and teach you a valuable skill that will come in helpful during future gardening endeavors. Follow the steps outlined below to obtain the materials you’ll need and to learn how to put them all together successfully.


All of the supplies you’ll need to create your own carbon filter can be found in one trip to the local hardware store and a quick glance around your home, which makes it a reasonably simple project to do. As you travel, cross the following tasks off your to-do list: A roll of aluminum screen or chicken wire is a good starting point.

The following items are required: B) A PVC cleanout cap and a PVC adapter with the same diameter; C) A dryer vent hose; D) A roll of duct tape. E) The importance of quilt batting F) The use of a laundry basket (preferably one with a lid) G) The use of activated carbon

Step-by-step Guide

Now that you have all of your supplies, arrange them on a big, clean work surface so that you can begin building. Make your own functional carbon filters out of these discarded parts and pieces by following the methods outlined in this guide.

  1. To do this, make an elongated tube out of your chicken wire or aluminum screen that is the same diameter as the PVC cleanout cap. Insert the cap into one end of the duct tape and secure it in place with the other end of the tape. Placing the tube into the basket with the open end pointing upwards and trimming the tube so that it is equal in height to the rim of the basket
  2. Remove the tube from the basket by pulling it out. Insert the PVC adapter into the open end of the pipe and use duct tape to connect the two objects together. The quilt batting should be folded in half to increase its thickness before being wrapped around the tube two times and duct taped in place. More batting should be folded in the same way, and a second layer should be formed around the walls of the washing basket, which should be secured with duct tape. Using the PVC adapter pointing upwards, place the tube in the center of the basket, so that it is horizontal. Increase the amount of batting on the walls until there is a 3cm space between the tube and the basket walls
  3. Activated carbon should be used to fill up the gaps. Continue to line the top of the basket with extra double-layered batting and cut a hole to accommodate the PVC adapter
  4. The dryer hose should be connected to the cleanout cap on one end, and the other end should be connected to your exhaust fan.
See also:  How To Set Up A Tent

When Should You Change a Carbon Filter?

Congratulations, you have successfully constructed your own carbon filter! Not only will you save money, but you’ll also be able to assist other growers in taking better care of their finances and becoming more self-sufficient farmers. Hang your homemade terpene filter in the same manner and start filtering terpenes! All carbon filters have a predetermined service life. Once the surface of the active carbon has accumulated and become clogged, it will no longer be able to absorb any additional molecules from the environment.

On average, your homemade filter should be able to keep the air pure for around two years.

When this occurs, just remove the cover and replace the wasted carbon with a new load of the same material.

Benefits of Using Carbon Air Filters in a Grow Room

The activated carbon filter, also known as the charcoal filter, is made out of activated carbon, which is typically available in powder or granular form, and it is used to filter water. Activated carbon filters were previously referred to as HEGA filters, which stands for High Efficiency Gas Absorption filters. This carbon contains millions of absorbent holes that are far too small, resulting in a carbon that is far too porous and absorbent. Volatile organic compounds, often known as VOCs, are filtered out of the air using a carbon air filter.

Among these are the following examples:

Manages odor

A carbon filter performs an excellent job of removing contaminants from the air, which is especially important if you have a grow room in your home. The usage of a carbon filter will make it easier for you to keep the stench in your room under tight control. Grow your own plants in your room, and you’ll be required to apply fertilizers, insecticides, and nutritional supplements. Your indoor plants’ development will be aided by the presence of these elements. However, it has the potential to generate a nasty stench to circulate throughout the air in your space.

A carbon filter is composed of carbon that has been activated.

Because it is made of very porous charcoal that allows air to travel through it, it also serves to trap odors in the process. This means that noxious odors won’t be able to escape because the carbon filter has the ability to absorb a large portion of the stench.

Aids in ventilation

If your air carbon filter is also equipped with a fan, it will ensure that your plants receive adequate oxygen. If you have a DIY Carbon Filter, you may want to consider installing it in conjunction with a fan. Having enough of wind to circulate around the plants is also beneficial for managing the temperature of their immediate surroundings. Not to mention the improvement in air quality as a result of the project. Growing rooms require adequate ventilation because it enables for more cold and fresh air to enter while keeping heated air out.

Eliminates Airborne Pathogens

The procedure of eradicating those chemicals, substances, and airborne infections that are known to either impede the development of your plants or kill them is also critical. It is possible that the airflow supplied by carbon air filters will aid in the removal of airborne germs from your room. It is reasonable to believe that your plants will be in good health as a consequence of this practice.

Ozone absorption

Ozone is the most significant contributor to the pollution that is widespread in urban areas. It is also possible that ozone will cause damage to any plants that are in your room. Having an excessive amount of ozone in the air is also harmful to your plants. Unfortunately, ozone buildup may occur really quickly, particularly if you have plants in your home. As a result, it is necessary to have a carbon filter installed indoors. In addition to increasing your chances of producing excellent quality harvests, installing a carbon air filter in your grow room will reduce your costs.

Having said that, once you have a carbon air filter, you will unquestionably be one step closer to harvesting high-quality plants.

Do You Need A Carbon Filter In Grow Tent For Vegetables?

Building growing tents in a confined location such as a garage or the rear of a house is common practice. Because there is little ventilation and lighting, a variety of odors, dust, and even airborne particles may begin to accumulate. A carbon filter is critical in dealing with these obnoxious odors as well as other potentially harmful particles. When growing veggies in a grow tent, do you require a carbon filter? When it comes to growing in a veg tent, the majority of growers do not employ carbon filters.

Additionally, if you have purchased a carbon filter for your flower tent, you will not be need to set up a carbon filter.

Do You Need A Carbon Filter In Grow Tent For Vegetables?

Is it necessary for the carbon filter to be located inside the tent? Carbon filters provide a fundamental function that is well understood. They eliminate the unpleasant odor and guarantee that fresh air is circulated throughout the grow tent. We cultivate a variety of plants in grow tents, including vegetables, flowers, medicinal trees, and other types of plants.

So, you’ve come to find out whether or not you require a carbon filter ingrow tent for veggies. It is dependent on a number of factors. When Using A Grow Tent For Vegetables, Why Do You Need A Carbon Filter?

Condition 1 —No Bad Smell

Do you detect any unpleasant scents emanating from the grow tent? If you have only recently set up your grow tent, it is possible that you did not do so initially. However, after a certain period of time, you may detect a bad odor emanating from the grow chamber. Due to the tiny size of the grow room and the limited space between the plants, it is possible to feel an unpleasant odor. Wait a few weeks before proceeding. Check in on a frequent basis to see if you can detect anything. Generally speaking, bad scents can become uncomfortable after one or two months of exposure to them.

Condition 2 —Several Fans

Fans are used in grow tents to guarantee that enough air is circulated throughout the whole structure. When you install multiple high-speed fans around the grow room, the likelihood of developing offensive odors is lessened significantly. If the problem persists for many months, the installation of a carbon filter becomes a possibility.

Condition 3 —Carbon Filter In Flower Tent

The use of carbon filters in flower grow tents is absolutely necessary. In most cases, grow tents are used to cultivate a diverse selection of flowers. It is possible that the combination of the fragrances of multiple flowers in a small space will not provide a pleasant smell. That is why many tent gardeners use a carbon filter in their flower tents to keep the air clean. The use of carbon filters in flower tents eliminates the need to use an additional carbon filter in the veg tent. You may connect the two tents together so that the carbon filter can also absorb odors from the veg tent as well as the main tent.

A failure to do so will result in the inability to extract a foul scent from a faraway location.

Condition 4 —Open Wide Space

Did you put up your grow tent in a well-ventilated area? If you answered yes, installing a carbon filter is not required. Open the grow tent’s entrance or window if you notice that the inside area is becoming unpleasant smelling. It enables for the passage of fresh air. The unpleasant odors will go. Make certain that you select a time of day when the weather is not too windy or too hot for you. In any other case, it will have a substantial impact on the internal environment.

Why Use Carbon Filters In Grow Tent For Vegetables?

Purchasing a carbon filter necessitates the expenditure of a significant sum of money, particularly when purchasing a high-quality carbon filter. If you are concerned about the development and health of your plant, a carbon filter should be used. It will prevent an unpleasant odor from permeating the interior of the grow tent and will guarantee that fresh air is provided. Despite the fact that vegetable plants do not produce as many scents as flower plants, this is still a good rule of thumb.

By employing them, you may avoid taking risks. As a result, you may use a carbon filter to improve the quality of the environment. However, whether or not you choose to utilize it is entirely up to you and your financial resources.

When To Change Carbon Filter Grow Tent?

When Should You Replace Your Carbon Filter Grow Tent? Grow tents are not meant to be used for an extended period of time. The need to replace them becomes necessary after a certain period of time. If you don’t do this, your grow tent will not provide a good climate for plants. When should you change the carbon filter in your grow tent? According to the majority of manufacturers and gardening experts, changing carbon filters every 1.5-2 years is preferable. If, on the other hand, you acquire them from a quality brand and treat them with care, they will last longer.

  1. Aside from that, the frequency with which carbon filters are used has a significant impact on the results.
  2. In general, the lifespan of carbon filters is determined by the number of hours the engine is used.
  3. Furthermore, by observing certain symptoms, you may determine when it is time to replace the carbon filter grow tent.
  4. However, as they grow older, the pleasant carbon odours will begin to go away.

Does A Veg Room Need Carbon Scrubber?

A certain amount of carbon dioxide must be present in a vegetable room. It should not be more than the minimum requirement. Is a carbon scrubber required in a vegetable room? It is dependent on the circumstances in the veg room. Generally speaking, the optimal concentration of carbon dioxide is between 400 and 450 parts per million (ppm). If it crosses 450ppm, it becomes necessary to limit excessive carbon dioxide emissions. Excess carbon dioxide from the grow chamber can be manually removed from the environment.

It is successful at removing huge amounts of carbon dioxide from the atmosphere and resulting in a generally healthy environment.

Make sure it doesn’t go below 200 parts per million (ppm).

Hopefully, you now have a clear image in your mind on the following question: Does a veg room require a carbon scrubber?

Best Air Filter For Odor Control In Grow Tent?

LEVOIT Air Purifier For Home Allergies Pets Hair In Bedroom, H13 True HEPA Filter, 24db Filtration System Cleaner Odor Eliminators, Ozone Free, Remove 99.97 percent Dust Smoke Mold Pollen, Core 300, White LEVOIT Air Purifier For Home Allergies Pets Hair In Bedroom, H13 True HEPA Filter, 24db Filtration System Cleaner Odor Eliminators, Ozone Free, Remove 99.97 percent Dust Smok Looking for information on how to choose the best air filter for odor control in a grow tent?

Investing in high-quality air filters pays off in the long run. So, how do you go about finding the finest air filter for odor control in a grow tent? What is your strategy? It is necessary to take a number of factors into consideration in order to obtain the most value for your money.

  • Is there a pre-filter on the carbon air filter to remove potentially harmful contaminants? How thick is the carbon in order to maximize absorption
  • When the carbon filter is turned on, does it produce an excessive amount of noise or vibration? What would you be prepared to pay for a high-quality carbon air filter with superior performance?

Consider the following questions before making a decision on whether or not to purchase a carbon air filter of superior quality. You may compare these top 5 carbon air filters to get the best air filter for odor control in a grow tent by clicking on the links below.

What Size Carbon Filter Do I Need?

What Size Carbon Filter Do I Need? What Size Carbon Filter Do I Need? Carbon filters are available in a number of different sizes. Using the incorrect size carbon filter will have no beneficial effect on your grow tent. As a result, it is critical to select the appropriate size carbon filter for your growing environment. Do I require a large or small carbon filter? When selecting a carbon filter, there are two things to keep an eye out for: So, how do you go about determining the proper size carbon filter?

You must multiply these three numbers together.

This means that the cubic footage of your grow room is 168 square feet.

To divide the result by 60, which is the number of minutes of exchange every hour, is the next step.

Look for a grow tent that is similar to CMF to use instead.

But it’s not that far away.

Tips To Take Care Carbon Filters

  • Make the switch to granulated carbons rather than pelletized carbons since they are higher quality, less weight, and have a longer shelf life. Make sure that the humidity level in your grow room is between 60 and 70% to guarantee that your grow tent will perform properly. If the humidity level rises beyond 85 percent, the activated carbons in the carbon filter will cease to function. Instead than relying just on fragrant plants, incorporate a variety of plant species. Alternatively, you will be need to replenish the filter more regularly.

Final Thought

Still have questions about whether or not you need a carbon filter in a grow tent for vegetables? Read on to find out. It is possible to establish a suitable climate for plants inside a grow tent by using a carbon filter within the tent. However, if you can secure the other criteria that we have given, you are not required to do so. However, if you still wish to apply it while taking other aspects into consideration, it is a good rule of thumb. Last updated on January 28, 2022 / Affiliate links included / Images sourced from the Amazon Product Advertising API

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