How To Make A Carbon Filter For Grow Tent

How to Make a Carbon Filter for A Grow Room?

Do you want to make your own carbon filter for your grow room? What’s the harm in trying? As a result, a home grower would at the very least give it a shot. Who knows, it might just end up saving you a few hundred dollars of your hard-earned money. Consider this: A good quality carbon filter costs somewhere in the neighborhood of $100. However, it is nothing more than some activated charcoal that has been trapped between two mesh metal sheets. However, the harsh reality is that the materialistic cost would be at least one-third of what it would cost on the open market.

What Are The Essential Parts of A Air Carbon Filter?

Before we get started on the steps, I’d like to take two more minutes to talk about something. Carbon filters, in its most basic form, may be used for both water and air purification. And it’s apparent that we’ve progressed to the second category. There are four parts to air carbon filters:

The Pre-filter

The pre-filter is the medium that surrounds the carbon filter body and is both breathable and semi-transparent. It has a low air resistance, which allows the air to move through the carbon bed with minimum resistance. Its primary function is to prevent dust particles and other contaminants from entering the carbon fibers.

The Body

The outside mesh, activated charcoal, and interior mesh are the three components that make up the ‘body.’ It allows the air to travel through the carbon layer after securing a dust-free air intake through the pre-filter and the carbon layer. Finally, odorless and odorless air is drawn into the air channel and directed towards the flanges of the air tube.

The Activated Carbon

This is the portion of the process that is the most exciting to see. On one side, activated charcoals, with their many pores, take in odor-causing compounds, while on the other side, they release air that is free of odor and dust. Australian Virgin Charcoal with a 1050+ rating is generally recognized as the most effective activated carbon for growingdiy carbon filter air purifiers in the industry.

The Air Passage

Specifically, the air passage refers to the cylindrical space between the two filter holes (flanges). It may range anywhere from 4′′ to 8′′ in diameter, depending on your ducting system. The flanges must have the same diameter as the ducting and inline fan in order to function properly. If this is not done, the entire objective of the filter will be defeated. Note: For additional information about carbon filters, including their varieties and functions, please see this page.

DIY Carbon Filter for Grow Room: What Items Do You Need? is the source of this image. We want you to pay close attention to what we’re saying here. There are many different goods (and alternatives) that you will need throughout the process of building a carbon filter grow room, as shown in the chart below:

Section Options Recommendations
The Pre-filter Over The Knee High Socks TOCONFFON Women’s Over The Knee High Socks
Polyester Filter Media AirstarFilters Air Filter Media Roll
The Body Mesh Trash Bin(Outer Mesh) Oranmay 9.84” Metal Mesh Wastebasket
PVC Drain Pipe(Inner Mesh) Ads Sewer And Drain Pipe 4″ X 10′
4.75″ Mesh Pencil Holder(Outer Mesh) Staples Silver Wire Mesh Jumbo Pencil Cup
4” Mesh Pencil Holder(Inner Mesg) WJX LIKERR Metal mesh Pen Pencil Holder
ActivatedCarbon Bamboo Activated Charcoal(Small) Drive Natural 220g Moso Bamboo Activated Charcoal
Bamboo Activated Charcoal(Medium) Health+ 8-pack Activated Bamboo Charcoal

Other Tools Required

  • The following items are required: a pair of scissors, measuring tape, zip ties, drill machine, and a 5/32 drill bit.

Steps to Make Your Own Carbon Filter

Okay, we’ve reached the meat of the post—there are certain measures to do in order to prepare a carbon filter for use with a 4′′ ducting system in mind.

If you have 6′′ or 8′′ ducting, you may transport goods with larger diameters and dimensions if you have them. We’ll go into more detail about it later. Allow us to proceed with the stages for the time being-

Step 1: Prepare the Two Pencil Holders

The two pencil holders serve as the foundation for the project we’re about to embark on. As a result, their sizes should be complementary to one another. When you place the smaller one into the larger one, the heights, diameters, and distances between them are all taken into consideration. Here are the ground rules:

  1. The smaller cup’s height should be approximately 3/4 of the height of the larger cup. The smaller cup should have a diameter that is precisely the same as the diameter of your ducting. Twelve to twenty-four millimeters should separate two cups (when smaller ones are inserted into the larger one).

Step 2: Drill Holes on the Bottom Surface of the Cups is the source of this image Each cup should have 8-12 tiny holes drilled onto the bottom to ensure that the cups are permeable from all directions. Due to the fact that these cups are comprised of fragile metals such as aluminum, you should use caution when piercing them. You should utilize drill bits as little as 5/32 inch in diameter if you are using a drill machine. They will become air-transparent if they have a series of uniformly drilled holes on the bottom.

Step 3: Put Both of the Cups into the Socks is the source of this image Putting both of the cups into the socks is what we’ll be doing next. To make the cups, take one sock for each and stretch the sock openings together. Now, insert the bottom of the cups into the sock and wrap the sock around the bottom of the cups. Repeat the same procedure with the second cup as well, if necessary. Make certain that they are equally coated over the whole spherical surface.

Step 4: Fill them Up with Activated Carbon

the website is the source of this image Putting both of the cups into the socks is what we’re going to do right now. To make the cups, take one sock for each and stretch the sock holes outwardly. Put the bottom of the cups into the sock and then wrap the sock around it to secure it in place. Using the other cup, repeat the method as described above. Make certain that they are equally covered all over the rounded surface of the container.

Step 5: Seal the Activated Carbon Within The Two Cups is the source of this image You will notice that the tiny cup and the carbon filter surface will not be at the same height when you place the small cup on the carbon filter surface. You must draw the sock up to the inside of the cup and wrap the sock around the rest of the cup’s body. is the source of this image Now, turn the arrangement upside down and allow the activated carbon to be uniformly dispersed between the two cups in the space created by the two cups’ gap. is the source of this image In addition, make certain that the gap between the two bottom surfaces of the cups is not left empty if necessary. is the source of this image When you’re finished, return the two cups to their upright positions.

Step 6: Adjust the Socks is the source of this image You’ll need to remove the sock from the inside of the cup at this point.

Take it off and wrap it around the outside of the cup. Check to see that the pulling is done evenly all the way through. It is important to execute this correctly in order to provide a clean edge of the middle-cup and also to create a secure termination.

Step 7: Attach it to Your 4” Ducting/Fan is the source of this image We’re almost completed putting our freshly constructed carbon filing system to use. Remove the filter and double-check that the cups are in their proper locations in both of the cups. Incorporate it into your grow ventilation system’s 4′′ ducting or inline fan at this point. Secure the connection with a bracket or zip tie, and keep twisting it until a secure lock is achieved. (Optional) It is recommended that you cycle the carbon filter around the duct/fan to double-check if the connection is strong or not.

Things to Keep In Mind

  1. It is never a good idea to use pencil cups with uneven diameters at the top and bottom holes if you are planning to create an activated carbon filter. Maintain 100 percent consistency in the distribution of the carbon inside the space between two cups when dispersing the carbon within the gap between two cups
  2. Check to see that the central axis of the two cups are on the same line and that the two apertures are at the same level before proceeding. Duct tape might be used to hold the two pencil cups together if you want to make them more secure. Change your carbon filter on a regular basis if you notice that your odor filter is no longer working
  3. Otherwise, replace it.

What if You Need A Bigger Carbon Filter?

When it comes to farmers with larger growing areas, this is a clear question that we anticipate. When compared to the 4′′ version, they obviously require a much stronger DIY carbon filter. The components you’ll need to construct your own activated carbon filter of greater size may be found by going through the process again and looking at the ‘What Items Do You Need?’ section once again. In the table, you’ll see that a number of alternatives (to the items we’ve used thus far) have been included.

  1. Instead of a big pen cup, use a mesh garbage bin
  2. Instead of a smaller pen cup, use a PVC drain pipe. Instead of socks, polyester filter medium is used. Instead of using no duck tapes at all, use duct tapes.

All of the options you can see above are options for expanding the size of the carbon filter as it becomes more and more enormous. As a result, you’re well on your way to completing your room odor control project. Hopefully, this instruction on how to create a carbon filter for a grow room has been of use to you in this respect. I’m Saleh, and I’m a blogger that enjoys doing home improvement projects on the side. is my tiny corner of the internet where I can communicate what I’ve learnt first-hand, particularly in the field of home repair.

7 Simple Steps To Make DIY Carbon Filter For Your Grow Tent

You could be worried with how well your grow tent or grow area is purifying the air and how strong the scents are coming out. You certainly should be! You must have high air quality if you want to grow plants indoors. We’ve taken care of everything, fortunately. Today, we’ll speak about how to use DIY carbon filters to counteract odors that aren’t pleasant. The creation of your own DIY carbon filters will help to cleanse and neutralize unpleasant and foul scents in your growing environment. The cost of purchasing a ready-made carbon filter might be rather high.

  1. However, when we look at the cost of the materials used in a decent carbon filter, we can see that it is far less than the price of the entire system on the market.
  2. So, if you’re on a tight budget, why not build your own carbon filter from scratch?
  3. There are two sorts of carbon filters to consider while discussing the many types of carbon filters.
  4. We’ll concentrate our attention mostly on carbon filters designed for air purification.

Finally, you’ll learn how to construct a DIY carbon filter by following a step-by-step guide. Consequently, let us go right into it without further ado.

What is a Carbon Filter?

We’ve determined that carbon filters are constructed of activated carbon, which aids in the odor-suppression function. Activated carbon is sometimes referred to as activated charcoal in some circles. A carbon filter, sometimes known as a scrubber, is an appliance that is connected to the exhaust system of a growing area. It contributes to the provision of ideal development conditions for plants by cleaning the air and controlling smells. You might be wondering why you shouldn’t use another element in the filter instead of carbon at this point.

Carbon possesses a one-of-a-kind capacity to detoxify.

It is also capable of capturing additional infections or pollutants that are carried by the air.

Are Carbon Filters Necessary?

Not everyone is required to have a carbon filter installed. Carbon filters are intended for use in environments where there is a high concentration of hazardous gases or volatile organic compounds (VOCs). Activated carbon filters are required in these types of environments. Aromas and pollutants from growing environments like as grow rooms, tents, and greenhouses are eliminated by using carbon filters. As a consequence, you will breathe clean, fresh air that is free of contaminants and allergies.

Consequently, if you suspect that foul scents are in the air around you, you might consider creating your own carbon filter.

What Are The Essential Parts Of A Carbon Filter?

In order to comprehend how to make your own DIY carbon filters, it is necessary to first grasp the physics underlying them. Since we’re talking about air carbon filters, let’s have a look at the components that make them up. Generally speaking, a carbon filter meant for air purification consists of three main components.

1. The Pre-Filter

The pre-filter is the section that is closest to the outside. Most of the time, it is a semi-transparent medium that is breathable. It does not act as a barrier to air, enabling the air to flow through it. It allows air to pass past it, and air particles become trapped in the filter. Due to the fact that this section contains the carbon filter, its primary function is to catch large-sized particles such as spores and dust.

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2. The Activated Carbon

The activated carbon in the filter is the component that is responsible for air purification and filtration. This carbon bed further purifies the pre-filtered air after it has been pre-filtered. The holes in the activated carbon allow pathogens and smells from the pre-filtered air to be absorbed by the carbon. It is as a consequence that all of the undesirable scents and airborne contaminants are eliminated from the air.

3. The Air Passage

The air channel is the gap in the center of the filter that allows air to travel through it. It links the two apertures, which are referred to as flanges. It is possible that the diameter of these flanges will range from 4 to 8 inches, depending on the size of your ducting system and inline fan.

The diameter of both the flanges and the ducting system must be the same, since this is what will allow the carbon filter to operate properly and to have a tightly-sealed fit with the ducting system.

How Does An Air Carbon Filter Work?

Adsorption is the mechanism by which air carbon filters act to remove contaminants from the air they are exposed to. Adsorption is a process in which molecules connect to the surfaces of other molecules rather than dissolving or soaking into one another, as occurs in absorption. Adsorption is different from absorption in that it does not involve dissolving or soaking into one another. The most important thing to understand about adsorption is that the pollutants adhere to the outer surface of the carbon during the process.

As with any other type of removal, adsorption occurs when the material you wish to remove (in this example, a contaminant) gets adsorbed into the structure of the adsorbent (which in this case is the activated carbon).

It does nothing more than fill in the pores of the activated carbon.

What is a Carbon Bed?

A carbon bed is a lattice of carbon atoms that are joined to one another by carbon atoms. Activated carbon contains holes that allow it to absorb smells and microorganisms that are in the air. The more porous the activated carbon is, the more effective the air cleaning process will be, and vice versa. Carbohydrate activation is significant because it increases the amount of surface area available for carbon atoms to bond to impurities, which is beneficial. As a result, clean and fresh air will be discharged into the surrounding surroundings.

What Items Do I Need To DIY A Carbon Filter?

Listed below are the materials you’ll need to construct a carbon filter. The materials necessary for this project are easily available in most houses, as is the case with most do-it-yourself projects. If this is not the case, you may always look for choices on the internet to construct the greatest homemade carbon filter! Also included are links to two of our favorite goods in the list below, in case you’re looking for new building supplies!

Section Options
The Pre-filter Knee-high socksPolyester Filter Media
The Body Mesh wastebasketMesh pencil holdersPVC Drain Pipe
The Activated Carbon Bed Activated Charcoal Premium Activated Carbon
Other tools A pair of scissors Drill machine Drill bit (5/32) Measuring tape Zip ties

Directions on How to Make Your Own DIY Carbon Filter

Assuming you’ve acquired some understanding of carbon filters, how they operate, and the materials required to construct your own filter, you’re ready to move on to the major goal of this article: how to construct your own carbon filter. We’ve included a step-by-step tutorial on building your own carbon filter in the section below. Be aware that this step-by-step instruction is intended for use with a 4-inch ducting system or an inline fan before beginning. You shouldn’t be concerned if you want to construct a larger carbon filter to accommodate your greater grow space.

All you need to do is utilize a pencil holder with a larger diameter to complete your project.

Step 1: Get Two Mesh Pencil Holders

A-Z Amazon Basics Wire Mesh Pen Cup (Black).

  • Designed to accommodate writing utensils and office supplies such as pencils and pens, this pencil cup is made of robust steel wire and has a mesh pattern for an industrial appeal. It has a slick black powder-coat finish that gives it a professional look

The mesh pencil holders will serve as a pre-filter for the DIY carbon filter you will be making. It is critical to ensure that the two holders are comparable in size, but not identical in size, before proceeding. To ensure that it can easily fit into the larger mesh pencil holder, one of the mesh pencil holders should be smaller than the other.

The difference in size, on the other hand, should not be excessive. The following guidelines should be followed while creating an excellent pair of mesh pencil holders.

  • Height — the smaller holder’s height must be one-fourth the height of the larger holder. When it comes to diameter, the smaller holder should have a diameter identical to the diameter of your ducting system in order to provide a well sealed fit
  • The space between the two holders should be between 12 and 24 millimeters (mm).

Step 2: Make The Inner And Outer Holders Rightly Permeable

Because we’ll be utilizing mesh pencil holders for this project, the sides of the holders will already be porous. However, it is conceivable that the bottom section may not be permeable and will be composed of a plain thin metal material instead of permeable material. If this is the case, you will have to drill holes into the objects in question. Drilling holes on the outside surface will provide total permeability of the outer surface, allowing air to flow freely through the holders from all sides.

The holders will be permeable if they have a series of 8 to 12 little holes on the bottom.

Step 3: Get Both The Holders In Separate Socks

All that is required in this phase is the insertion of each mesh holder into a sock. Make sure to choose a pair of high-quality, stretchy socks to ensure that your DIY filter lasts as long as possible. Starting with one sock, expand the aperture to its maximum length and insert the mesh holder into the sock, starting with the bottom half of the mesh holder. Assemble the entire holder by wrapping the sock around it from the top to the bottom, making sure that all sides are covered. After that, repeat the process for the other mesh holder.

Step 4: Fill The Outer Mesh Holder With Activated Carbon

Carefully pour the activated carbon into the outer pencil holder, taking care not to spill any. Fill this holder halfway with your favorite beverage. As part of this procedure, make sure you utilize finely ground activated carbon to guarantee that your filter is functioning properly. It is possible that large bits of activated carbon will interfere with the overall process of air filtration. As a result, it’s recommended to avoid utilizing them.

Step 5: Seal The Activated Carbon Between The Two Mesh Holders

The activated carbon is held in place to prevent it from pouring out by placing the smaller holder on top of the carbon layer within the bigger holder. Pull the sock of the outer holder all the way up, ensuring that it covers the whole length of the inner holder as well as the outside holder. After you’ve secured the activated carbon in place, flip the holders over and repeat the process. Making certain that the activated carbon is dispersed uniformly throughout the setup will be the goal of this phase.

Now that the activated carbon has been dispersed uniformly throughout the setup, return it to its previous setting.

Step 6: Adjust The Position Of The Inner Mesh Holder Sock

The level of the rim of the smaller mesh must be aligned with the level of the rim of the larger mesh throughout this phase of the process. Maintaining the alignment of the inner mesh holder’s sock is essential to maintaining this alignment. This may be accomplished by extending out the sock’s opening and bringing it all the way down to cover the entire arrangement, as shown. Keeping the configuration in place will be made possible by the adjustability and encasement of the sock.

Step 7: Attach The Whole Setup To Your Ducting System Or 4-Inch Inline Fan

The final step is to position the DIY carbon filter in order for it to function properly. You may connect it to your ducting system or an inline fan for maximum efficiency.

Make sure the filter is correctly installed in the ducting since after it is installed, you will not be able to adjust its settings. You can now secure the entire arrangement with a zip tie and you’re ready to start using it!

What Other Issues Should I Be Aware Of Before Making My Own Carbon Filter?

Before you begin the process of creating your own carbon filter, consider the following considerations:

  • Always choose pencil holders with diameters that are complimentary to one another to guarantee a snug fit. Maintain a uniform distribution of the activated carbon between the two mesh holders while fastening the material between them. Adjust the center axis of both holders so that they are parallel to one another and the two apertures are at the same level. If you are having difficulty fastening the two holders together, consider using some duct tape to keep everything together. Once you notice unpleasant odors emanating from your planting area, replace the carbon filter.

How Often Should I Change My DIY Carbon Filter?

In order to maintain a snug fit, always utilize pencil holders with comparable diameters. When attaching the activated carbon between the two mesh holders, make certain that it is distributed uniformly across the whole circumference; and Adjust the center axis of both holders so that they are parallel to one another and the two apertures are at the same level; If you are having difficulty fastening the two holders together, consider using duct tape to keep everything together. When you notice unpleasant odors emanating from your gardening area, replace the carbon filter.

Final Wordson DIY Carbon Filters

So that was the end of the DIY carbon filter project! Creating a DIY carbon filter is a basic and straightforward project that can be completed by any indoor grower. Having your own carbon filter will ensure that you get the optimum air filtration and that any odors from your indoor growing environment are eliminated. In addition, there are additional methods of eliminating odors from a grow tent or grow chamber, such as the use of inline fans or odor neutralizing agents. As previously said, these filters provide several advantages and are required if you want to ensure that your plants grow up in a healthy environment.

  1. Fortunately, following this instructions will assist you in creating your own carbon filter and save you a significant amount of money in the process.
  2. Consider purchasing a carbon filter after reading this article.
  3. Originally from Arizona, Lindsey Hyland attended the University of Arizona’s Controlled Environment Agriculture Center, where she received her bachelor’s degree.
  4. She created in order to share gardening advice and strategies with others.

DIY Carbon Filter Step-by-Step Guide [+Why you Need One]

It is critical to provide your plants with the best possible environment in order to produce a healthy and vigorous yield. One method of assisting in the creation of the plant’s natural environment is to incorporate a grow tent into your hydroponic system. With the support of fans and lights, as well as supplying an appropriate supply of water and nourishment, a grow tent may help you achieve your hydroponic goals. A prominent reason for the popularity of grow tents is that they allow for the creative use of growing areas.

Grow tents have gained in popularity as a result of their energy efficiency, which allows you to get the most out of your investment.

Grow tents, like hydroponics, provide for pest-free planting all year round, just like hydroponics. When it comes to your grow tent, ensuring sure that it has adequate ventilation is essential for the health of your plants. This is simply accomplished with the help of a carbon filter!

What Exactly is a Carbon Filter?

Scrubbers are pieces of equipment that are installed to the exhaust system of grow tents to filter out carbon monoxide and other pollutants. It is made of activated carbon material, which has been used for detoxifying purposes for centuries and is still in use today. It is customary to install carbon filters to the inline duct fan or the tail end of the ducting system. This permits the carbon filter to effectively clean the air that circulates throughout the building.

How Do Carbon Filters Work?

Carbon filters, when installed in your exhaust system, physically capture the odor, dust, spores, pollen, and other impurities that would otherwise be released. Air that has been polluted by pollutants is brought into the room through the exhaust system, where it is treated before being expelled clean and odor-free. As you can think, the outcome is cleaner air for your plants, which is beneficial. This air is cleaner, free of smells, spores, and other allergies, and it is more breathable. A excellent carbon filter, on the other hand, might be quite beneficial if you have an odor problem caused by your plants.

Benefits of Using a Carbon Filter for your Grow Tent

The advantages of using a carbon filter are numerous and include, as previously said, regulating smells, assisting with ventilation, eliminating airborne infections and pollutants, and growing healthier plants. In addition, if your legal plants generate any unpleasant scents, a carbon filter will take care of the problem. It’s important to utilize finely powdered activated charcoal, since this will provide the most effective filtering. There are several carbon filters available on the internet, each of which will cost you roughly $100, or you may do it yourself if you’re on a tight budget and feel handy!

  1. We will walk you through the process of doing it yourself so that you may save money while also benefiting your plant kids.
  2. There is a pre-filter that acts as a first line of defense, trapping dust, big airborne particles, and other pollutants.
  3. The activated carbon bed, also known as the one-legged unicorn of the carbon filter, is the next stage in the process.
  4. The final component is the air passageway (also known as the plenum).
  5. The air passage must have the same diameter as your ducting or inline fan.
  6. We’ll lay out the items you’ll need to get started using a 4-inch ducting system as a starting point.

For ducting systems with diameters more than 4 inches, you can make adjustments to the materials and dimensions as needed. The following is a preliminary list to assist you in getting started with your first DIY carbon filter project!

Supplies Needed for DIY Carbon Filter:

  • A polyester filter medium such as knee-high socks will suffice as a pre-filter
  • For the Body (outer mesh): a mesh pencil holder (about 4.5 inches in diameter)
  • A mesh bin
  • For the Body (inner mesh), you’ll need a mesh pencil holder (about 4 inches in diameter) and a PVC drain pipe. In order to make the Activated Carbon Bed, you will need the following items: scissors, zip ties, measuring tape, drill machine, drill bit (5/32, if feasible), and a drill bit (5/32 if possible).
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Following that, we’ll show you how to make a simple and efficient carbon filter out of common home items using the instructions below. First and foremost, make certain that the sizes of the outside and inner meshes are complementary to one another. They will act as the framework for your whole filter, thus it is vital to ensure that the meshes are aligned one over the other during this process. The height, diameter, and distance between the mesh holders are just a few of the factors to consider during this process.

  • When it comes to the distance, the space between the larger holder and the smaller holder within is 12 to 24mm.
  • It may be necessary to drill holes in your pencil holders, depending on how porous they are, in order to allow air to travel through on both sides of the holder.
  • Pick up your socks and insert one pencil holder each sock, starting with the leftmost sock.
  • Then you may pull the sock up to ensure that both pencil holders are completely covered.
  • Pour the activated carbon into the huge pencil holder slowly and carefully, filling it just approximately halfway with the material.
  • Place the inner mesh on top of the carbon inside the bigger cup, then draw up the sock of the larger cup all the way over the smaller cup as well.
  • Once the carbon has been packed in safely, carefully turn the container upside down to ensure that the carbon is evenly distributed.

When creating the inner mesh, it is critical that the rim of the inner mesh is aligned with the level of the outer mesh’s rim.

Continue to make adjustments as necessary until everything is equal on both sides.

Ensure that you secure the filter snugly into the ducting, so that it cannot be easily moved or twisted.

As a result, you now have your very own, home-made carbon filter!

For your plants, the advantages are numerous, including improved quality and flavor; but, if you desire an unscented grow tent, a carbon filter is the only option available to you.

Before we go any further, take a look at this video of a DIY carbon filter to see for yourself how simple it is to construct at home:


Depending on your requirements, available space, and configuration, the carbon filter may be placed either inside or outside your grow tent. To install the carbon filter inside your grow tent, attach it to one side of the tent and the fan to the other side of the tent at the exhaust outlet, following the manufacturer’s instructions. If you want to run ducting from the filter to the fan and then from the fan to the exterior of the tent, that is an option. Once this is completed, check to see that the fan is successfully drawing air from the interior of the tent to the outside of the tent.

If you have a limited amount of space within your grow tent, you may want to consider setting up your carbon filter and fan outside your grow tent instead.

You may now connect the ducting from the interior of the grow tent to the outside of the tent by passing it through the exhaust port.

Always check to see that the fan is drawing air from the interior of the tent to the outside of the tent.

How Often Should You Change your DIY Carbon Filter?

Replace your carbon filter once a year if you can afford to do so. Carbon filters lose their effectiveness over time, which is especially true if your grow tent is subjected to a lot of use. When it comes to replacing your DIY carbon filter, a good rule of thumb is to wait 12-18 months. Maintaining the carbon filter guarantees that your plants are only exposed to the freshest, cleanest air possible!

15 DIY Carbon Filter Projects You Can Make From Home

It is defined as follows by Wikipedia: “Carbon filtering is a type of filtration that employs a bed of activated carbon to remove contaminants from liquids by adsorption.” You’re probably seeking for a high-quality guide that will show you how to create a homemade carbon filter. We’ve got you covered, trust us. To put this piece together, we spent a few of weeks researching and writing. The majority of the tasks on this page are rather simple to do. Some projects are more involved and will necessitate the expenditure of funds.

1. How To Make A Cheap Carbon Air Filter

First and foremost, in order to begin creating this carbon filter at a low cost, you will want four key components. The first of these is two jugs, one larger and one smaller in size. Then you’ll need carbon rocks, which are approximately $20 each, PVC adhesive, a drill, and a pre-filter to complete the project. When choosing your jugs, look for ones with a rounded lid, and the smaller one should be able to fit easily into the bigger one without a problem. The methods involved in creating this carbon filter are rather straightforward and straightforward to follow.

2. DIY Carbon Filter

Thanks to this fantastic video instruction, you’ll be able to construct a 120mm computer fan as well as an active carbon filter today. Even though the movie began with the author testing an active carbon filter that he had already built, he then destroyed it and built another for you to watch from the ground up in this time-lapse film, which you can view below.

The designer made use of aquarium activated carbon, which is difficult to come by yet quite effective. There is a link in the movie that will direct you to a page where you can download and view the blueprints that were used to construct this structure.

3. DIY Carbon Filter In 10 Minutes

Does your carbon filter require immediate delivery, and you do not have time to wait for Amazon or your favorite online retailer to send you a replacement? Well, you can create one at home in less than 10 minutes, and it is pretty practical and does the job well. All you’ll need is chicken wire, zip ties of various sizes, a pair of large pantyhose, a 4-inch solid duct tube, and odor-control carbon furnace filters to complete the project. Once you have these materials available, the remainder of the processes are straightforward, and there are some photographs and screenshots to assist you in following them correctly.

4. DIY Micro Grow Carbon Filter

You have in front of you an incredible micro grow carbon filter that will only cost you $20 to construct. Two mesh pen cups, one of which will be large and the other little, activated carbon, and a few other things will be required to get you started. Next, pour some carbon into the large cup, then place the smaller cup inside the larger one. Repeat this process for the second cup. Pull out the smaller one and slip the bottom of it into a sock to keep it in place. Duct tape will be required as well.

More information is available by clicking here.

5. How To Make Air Carbon Filter

Starting with the creation of this time-lapse film, the artist chopped away piece of the cup top that he intended to use as the air carbon filter to get started. I’m only going to list the materials and equipment he used to make it easier for you to follow along with the project. The supplies you will need are an iron mesh 500x1000mm, 2k Epoxy, 2x reduction 125/180mm, a 300mm long sponge with 10mm thickness, 1x rosette 125mm, an active carbon filter 400/800mm, and an iron mesh 500x1000mm. The equipment you’ll need include an angle grinder, a CO2 welding machine, and a sewing machine, amongst other things.

6. DIY Air Carbon Filter

Before I begin discussing the manufacturing process for this air carbon filter, you should be familiar with the components you will be utilizing. In order to complete this project, you’ll need the following supplies: a 6* to 4″ reducer, two 4 and 6 inch hose clamps, spray foam or caulking, activated carbon (also known as carbon black), nylon stockings, a hardwire mesh, 4 and 6 inch end caps, and a 4″ union. Additionally, you’ll need a pre-filter, although the designer utilized a 30×64 sheet dust stop air filter that he purchased for around $10 from a local hardware shop.

7. DIY Carbon Filter

This is a low-cost carbon filter that makes use of a permeable organza fabric and activated carbon to filter the air. This is a straightforward carbon filter that will not cause stress to begin building from the beginning, and it will not slow down the airflow. Here are some of the items you’ll need to complete this project: a half yard of organza fabric for around $2, a 2ft fold over elastic for approximately $2, and activated carbon, which costs about $6 to purchase.

The entire process is simple and straightforward. More information is available by clicking here.

8. DIY Carbon Air Filter For Grow Room

This article discusses a variety of factors that contribute to the effectiveness of a carbon filter, and by the conclusion, you will have a better understanding of how to manufacture and utilize a carbon filter successfully. This specific carbon filter is designed for use in a grow room, and you should be able to complete the construction of one in less than 10 minutes. It’s quite simple and quick. If you have a grow room and are in need of a carbon filter, this article will help you make the best decision for your growing environment.

9. DIY Carbon Filter For Grow Tent

Consequently, here is a second incredible carbon filter for a grow tent, but this one is designed specifically for use with an inline fan in your grow tent. This can be constructed for less than $40. The manufacturing process is quick, simple, and dependable. What’s great about this carbon filter is that it can be salvaged as many times as you like; all you have to do is replace the carbon materials and you’ll have a brand new carbon filter that will last you for months before it has to be replaced again.

10. DIY Activated Carbon Filter

There are a few items you’ll need before you can get started on your carbon filter construction endeavor. You’ll need a threaded rod, an impact drill, a metal saw, butterfly nuts, a pipe closure, and activated carbon to complete this project successfully. This video lesson is not a time-lapse; instead, the inventor made certain that he took his time to explain and take you through the process of building this without stumbling blocks.

11. Build DIY Carbon Filter

This is one of the most effective carbon filters that you will have the opportunity to construct in the near future, according to the manufacturer. You can easily connect it to your bathroom fan unit or to a fan unit within your grow space. It’s a basic and straightforward recipe to prepare. This can assist to remove the stink from your grow space and keep the aroma of your plant hidden from prying eyes of law enforcement officials. This will cost you around $30 to construct and will take you approximately an hour to complete.

The only materials you’ll need are one activated carbon block, one roll of aluminum screen, one roll of duct tape, one four-inch ventilation end-cap, and one four-inch duct connection.

12. How To Use And Install A Carbon Filter

Today, you’ll learn how to construct a carbon filter and an exhaust fan, as well as how to put them to use in your grow room or other enclosed environment to maximize efficiency. Here are the goods that were indicated in the video: a four-inch and six-inch inline fan, a Ducting combination, and a carbon filter are all that are required. All of these goods may be purchased from Amazon or any other internet retailer of your choosing. It is appropriate for novices to watch this video instruction since the developer made certain that he explained everything in a way that anyone could comprehend.

See also:  What Size Led Light For 4X4 Grow Tent

13. DIY Activated Carbon Filter

This article will teach you how to construct an air purifier that will filter out all pollutants such as organic materials, cigarette smoke, and other contaminants. This helps to purify the air that you breathe and removes scents that are toxic. Listed below are a few of the things that you will need to construct this activated carbon filter.

First and foremost, you’ll need activated carbon, a computer fan, a window screen, balsa or baseboard, modeler’s plywood, glue, pantyhose, and a 12V AC/DC converter to get started. More information is available by clicking here.

14. How To Build A Mini Carbon Filter

Listed below is a simple instruction on how to construct a miniature carbon filter that also includes an exhaust fan. This video tutorial will show you how to construct a cat in the filter as well as an exhaust fan at the same time. In order to begin, you’ll need a few items. You’ll need an Axial fan with a 120mm blade, foil tape, jumbo straws, activated carbon, and a 120mm computer fan. You will be able to construct an outstanding small carbon filter for your plant with only these five components.

15. How To Use Carbon Filter In Grow Room

Cannabis carbon filters are likely to be required if you have cannabis grow rooms in your neighborhood, or if your state has legalized the use of marijuana in some form. It’s not difficult to put together one yourself. Listed below are a few equipment and components that you may purchase to construct a fast one at your house. You’ll need a roll of chicken wire or aluminum screen, dryer vent pipe, a roll of quilt batting, a roll of duct tape, an activated carbon filter, and a few more things to complete this project successfully.

Best Homemade Activated Carbon Air Filter and inline fan

Because I am an Amazon Associate, I receive money when people make eligible purchases. You will not be charged any additional fees! Many factors influence the decision to grow various plants in a grow room, and the following are some of the most important. The capacity to develop in a more controlled environment is a significant advantage of this approach. It is possible for farmers to make healthier final products by controlling temperature, amount of light, and hydration. Air filtration is one of the most important considerations when setting up a grow space.

  1. It decontaminates the environment and neutralizes any offensive odors that may have accumulated inside the room.
  2. Nonetheless, a high-quality unit might easily cost upwards of $100 per unit each year.
  3. It is simple to create and is far less expensive than the commercially available options.
  4. One is designed for water filtration, while the other is intended for air purification.
  5. This type of 101-guide will supply you with really essential information.
  6. Additionally, a step-by-step technique for building a DIY carbon filter for your grow room is included in the package.

What is a carbon filter?

Beginning with a basic understanding of what a carbon filter is will serve you well throughout the rest of this essay. This piece of equipment, which is also known as a scrubber, is attached to the exhaust system of a closed chamber to clean the air. A grow tent or room, as well as a greenhouse, might be used as these isolated spaces. Its purpose is to purify the air by removing contaminants. Helps to provide a favorable development environment and odor control in this way. The activated carbon material that makes up the carbon filter is used.

It has the capability of removing or filtering out odors, dust, mold spores, pollens, and volatile organic compounds, among other things. Aside from that, there are airborne diseases and other toxins that remain in the atmosphere.

How does a carbon filter work?

Beginning with a basic understanding of what a carbon filter is will serve you well in the remainder of this essay. This piece of equipment, which is also known as a scrubber, is connected to the exhaust system of a closed chamber. A grow tent or room, as well as a greenhouse, might be used as separate spaces. Its purpose is to purify the air by removing pollutants. Helps to create appropriate growth conditions as well as odor management in the process. It is made out of activated carbon material, and it is used as a filter.

It is capable of removing or filtering out odors, dust, mold spores, pollens, and volatile organic compounds, to name a few contaminants.

What are the types of carbon filters?

Carbon filters are categorised according to the media through which they filter. Based on the filter-fan combination or the diameter of the filter. The numerous categories will assist you in sorting through and selecting the most appropriate version, which will be determined by the requirements of your grow room.

Types based on Filtering Medium:

1. Carbon Filter for the Air This form of carbon filter is the most popular, practical, and effective of all the carbon filter types available. The bed of activated carbon that makes up this air filter is the basic structure. The porosity of the material leads the surface area of the substance to expand by as much as 2,000 to 4,000m2 per gram, depending on the density of the material. A lot of things including smells, moisture, and pollutants get sucked into the pores that have developed. Non-Carbon Air Filter (Non-Carbon Air Filter) There are other types of filters available that are not always comprised of carbon.

This sort of vacuum is solely capable of extracting dust particles.

Types based on Filter-Fan Combination

Using a carbon filter, with or without the help of a fan, is what this term is referring to. The use of a carbon filter in conjunction with an extraction fan boosts the effectiveness of purification even more. The fan contributes to the process by forcing dirty air from the surrounding environment to flow through the activated carbon bed. More air may be filtered out in this manner, resulting in the facility becoming less and less polluted. However, the use of a carbon filter in conjunction with an extraction fan can significantly improve the effectiveness of purifying even more.

More air may be filtered out in this manner, resulting in the facility becoming less and less polluted.

Furthermore, the filter-fan combination allows for greater customization. It is possible that certain variants of this gadget will provide an ability to customize the fan speed to suit your needs and preferences.

Types based on the Diameter

The diameter of an appropriate carbon filter varies depending on the size of the grow room in which it is installed. The standard size runs from 4 inches to 12 inches in diameter, and it has a CFM rating ranging from 150 to more than 1,400 per minute. An aside, the CFM rating, which stands for cubic feet per minute, refers to the fan’s ability to create movement in the surrounding air. This measurement measures the amount of airflow that is sufficient in a certain space, which is generally limited.

This will allow for the optimum degree of ventilation to be achieved.

Size 4-inch 6-inch 8-inch 10-inch 12-inch
CFM Rating 150 – 250 400 600 – 700 1,100 – 1,200 More than 1,400
Grow Room Size (in Feet) 4 x 44 x 74 x 8 8 x 810 x 8 12 x 12 More than 12 x 12 More than 12 x 12

What are the fundamental parts of the carbon filter?

We’ll now go through the steps to take in order to make your own carbon filter at home. Let us first become acquainted with the three fundamental components of the device with which we will be interacting in the future.

1. Pre-filter

The pre-filter, as the name indicates, is the first line of defense in this air purification system. It is a breathable and typically semi-transparent medium that has low air resistance and allows for maximum air flow. This makes it possible for air to move through. The primary function of the pre-filter is to capture larger-sized particles such as dust and debris before they can enter the system.

2. Activated Carbon Bed

The magic happens in the activated carbon bed, which is a porous material made of carbon. The air that has already been filtered is further cleansed by this layer of treated charcoal. Pathogens and chemical vapors are absorbed into the activated carbon’s numerous pores, where they are destroyed. Impurities and odors in the air are completely eradicated as a result of this process.

3. Air Passage

It is the cylindrical gap located between the two flanges of the filter that serves as the air channel. The diameter of these flanges or ports must be the same as the diameter of the ducting or inline fan. It must be able to have a tightly sealed fitting in order for it to work.

What are the materials needed to make a carbon filter?

The following is a list of the materials that will be required for the construction of your own carbon filter. Moreover, because this is a DIY project, the goods we have included are ones that are commonly found. Additionally, you will be able to find them at any of the nearby establishments. Improve your chances of success by finding out whether you already have them in your home.

Common Supplies for DIY Carbon Filter
Pre-Filter Polyester filter mediaKnee-high socks
Body (Outer Mesh) Mesh wastebasketMesh pencil holder (4.75 inches)
Body (Inner Mesh) PVC drain pipeMesh pencil holder (4 inches)
Activated Carbon Bed Activated carbon
Other supplies Measuring tapeScissorsZip tiesDrill machineDrill bit (Preferably 5/32)

How to make your own carbon filter?

We’ve reached the most important part of this article. Detailed instructions for constructing a do-it-yourself carbon air filter for your grow room are provided below. As a point of reference, the configuration shown below is for a 4-inch ducting system. If you want to create a larger carbon filter, the resources you’ll need and the technique you’ll follow will be the same. Alternatively, you might use materials with a larger diameter to save money. 1. Check that the inner and outer meshes are of equal size and that they compliment one another.

Essentially, the mesh pencil holders will serve as the skeleton framework for your whole filter. As a result, it is critical that the two meshes are the same size and that they fit one over the other. The following are some of the most critical considerations:

  • In terms of height, the smaller holder should be approximately 3/4 as tall as the larger holder. It is necessary that the smaller holder’s diameter be equal to or greater than the diameter of the ducting. You may do this to ensure that your clothes are well-fitting. The distance between the larger holder and the smaller holder within the larger holder must be at least 12-24mm.

Ensure that both the inner and outside meshes are impervious to water. Because of their mesh design, both of the pencil holders that were utilized are permeable to air. However, it is possible that its lower portions are not yet complete. Then you may need to drill holes into them to ensure that air can travel through on all sides of the holder, which may require some drilling. The majority of the time, these mesh pencil holders are made of a thin metal substance. Because they are not as hard as other materials, you should use particular caution while drilling holes into them.

  1. 3.
  2. You must use one sock per pencil holder in order to comply with the law.
  3. Pull the socks up so that they provide complete covering on all four sides.
  4. 4.
  5. Be cautious while pouring the activated carbon into the outside mesh or the bigger pencil holder to avoid damaging the material.
  6. Activated charcoal that has been finely powdered should be used, especially for smaller carbon filter projects.
  7. 5.

Placing the inner mesh on top of the layer of carbon within the bigger cup will help to prevent the carbon from spilling over and becoming wasted.

Now that the activated carbon has been completely sealed in, you must use caution when flipping the arrangement upside down.

Nonetheless, you must ensure that an equal layer of carbon is left between the bottom portions of the cup as a precaution.

You must next check that the rim of the inner mesh is level with the level of the rim of the outer mesh before moving on to the next step.


Once both of the meshes are in their respective positions, secure the setting of the smaller cup’s sock in its right position.

Make the necessary adjustments in order to maintain total equality on both sides.

Attachment to the ducting or the inline fan (if applicable).

Inspect the filter to ensure that it is snugly inserted into the ducting. That means it can’t be twisted any further and is already secured in place; simply secure it with a zip tip to keep it in place. Check the connection one more time to make sure it is secure.

How often should you change your DIY carbon filter?

It goes without saying that Carbon Filter systems, like any other air filtering system, will gradually lose their efficiency over time. The majority of the time, it is projected to endure between 12 and 18 months on average. However, the amount of filtration required in your grow room will vary depending on the size of your facility. It is possible that you may need to replace it sooner than normal in order to maintain the finest air purification. Those are the fundamental stages in building a do-it-yourself carbon filter for your grow room, and that concludes this guide.

Among many other things, it adds to the health of the cultivars in question.

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