What Size Dehumidifier For Grow Tent

How to Size Your Grow Room Dehumidifier

Posted on behalf of| It is critical to maintain proper humidity levels in a grow room in order to maintain ideal air quality, but successfully monitoring and regulating these levels may be difficult. Considering the quantity of moisture that will accumulate as a consequence of plant transpiration is critical when building and constructing an indoor garden, since too much moisture may have a significant influence on crop yield and quality. Molds like as powdery mildew have the potential to damage a whole harvest.

Evaluating Your Grow Room’s Dehumidification Needs

The precise climate you’ll be working in and the daily activities you’ll be performing are important considerations when sizing a dehumidifier for your indoor grow house, according to the manufacturer. As an illustration:

  • How much water do you provide to your plants on a daily basis
  • Are you using an air conditioner to regulate the temperature in your home? If yes, what is the dehumidification rating of the appliance? Check the specifications of your specific setup
  • It should state how many pints of water it removes from the air each day. In your grow room, do you make use of CO2?

When deciding the optimal size for your grow room dehumidifier, keep the following considerations in mind:

Gallons Per Day

Calculate an approximate estimate of the number of plants that will be in your grow room and the amount of water they will get in order to assess how much moisture will accumulate in your area. For example, 30 plants receiving 1 gallon of water per plant per day results in a total water input of 30 gallons of water. 240 pints of water is included within each gallon, for a total of 240 pints of water every day. 1 pint of water is equal to about 1 pound of moisture per hour, which is translated to pounds per hour.

Over the course of 24 hours, this equates to a removal of 10 pounds of moisture every hour.

Temperature Range

In order to survive, various types of grow rooms and plants will require varying temperature ranges, and different growing cycles will require varying temperature ranges as well. For example, a cloning room may begin at 75 degrees Fahrenheit, but a blooming room for the same plant may be maintained at 78-80 degrees Fahrenheit. In addition, temperatures in a drying and curing chamber may be closer to 65°F degrees.

Dehumidifier Sizing

Dehumidifier solutions are scaled based on the amount of moisture they can remove from the air. Pints of moisture removed in a 24-hour period are measured in the capacity of the dehumidifier – a 30-pint dehumidifier, for example, eliminates 30 pints of moisture in a 24-hour period. With the premise that 1 pint equals about 1 pound of moisture, the pints per day may be translated to pounds per day or pounds per hour, as well.

Additional Environmental Factors

Also take into consideration the sort of material that will be utilized in your grow room: What kind of environment will the plants be cultivated in? Will they be planted in a container with soil and watered regularly?

Will they be given a new type of material to work with? Will they be watered on a regular basis? The rate of transpiration will vary based on the drainage and irrigation systems in use. It’s also important to consider the following:

  • If you are utilizing ventilation and your climate is normally humid
  • If this is the case, add an additional ten pints to your total amount. If people will be spending time in the grow room area
  • If this is the case, add an additional 5 quarts to the total. If there are several doors/windows in the space
  • If so, add an extra 5 pints to the estimate.

Grow Room Dehumidifier Solutions From DCA

Are you interested in finding out more about indoor farming and moisture management? ” Indoor Farming: Ensuring High Yield, High Quality Crops with Custom Dehumidification and Air Quality Systems” is a free eBook that you can download and read. Alternatively, you may contact us to discuss how we might assist you with your individual grow room requirements. Any inquiries you may have may be answered by the professionals atDehumidifier Corp. of America(DCA). Dehumidifiers, indoor growhouse dehumidification are some of the topics covered.

Grow Tent Or Grow Room Dehumidifier

It is important to carefully size your grow room dehumidifier in order to maintain proper relative humidity levels. Learn how to choose the appropriate size for your setup, as well as our top three suggestions for the finest dehumidifier for your grow tent or grow room. Do you intend to start growing plants indoors in the near future?

Our Top Picks For Grow Tent or Grow Room D ehumidifier for 2022

It doesn’t matter if you want to become an indoor horticulture or if winter is just around the corner; there are a few things you should keep in mind in order to be successful. It is critical to choose the appropriate size of your indoor growing space, as well as whether a grow tent or a grow box would be the most appropriate for the plants you intend to produce. One of the most important factors in achieving success with indoor horticulture is selecting the appropriate dehumidifier size for your grow room or grow tent.

This will assist you in ensuring that your grow space does not receive excessive moisture, which will help you prevent moisture-related problems like as root tot and mildew.

Everything you want to know about Your Dehumidification Needs will be covered, as well as the finest brands I could find on the market for different grow tent sizes.

1 Pick For Best Grow Room Dehumidifier

  1. Dehumidifiers such as the Eva-Dry E-333 Renewable Mini Dehumidifier, the Inofia Portable Dehumidifier with a 4 gallon working capacity, the ALROCKET Dehumidifier Small Dehumidifier for up to 160 square feet, and the Inofia Portable Dehumidifier with a 4 gallon working capacity.

1. Best Dehumidifier For 2×2 Grow Tent: Eva-Dry E-333 Renewable Mini Dehumidifier

Editor’s Pick No. 1 Deals & Discounts on SaleEva-dry E-333 Mini Dehumidifier, White Sand, Pack of 1

  • EASY TO USE: There are no spills or messes with this small dehumidifier. Just sit there and
  • A SMALL MINI DEHUMIDIFIER CAN GO A LONG WAY: The life expectancy of a super dry dehumidifier is 20-30 years. DESIGN THAT IS SMALL AND SLEEK: This tiny and portable design allows you to hang or

When I first started experimenting with indoor plant growth, I just had around five plants that didn’t require a lot of water. My dehumidifier of choice was the Eva-Dry E-333 Renewable Mini-Dehumidifier, which performed admirably. It is extremely distant due to the fact that it does not require any connections or even batteries to function. It was quite simple to set up! This works best if you have a grow tent or a space that isn’t very large to accommodate your needs. Now, the maker states that this little gadget would function with an area as large as 333 square meters, but I would argue that this isn’t the case.

  • Within 2-4 weeks, it is said to eliminate 4-6 ounces of humidity.
  • When it comes to determining how long it should last, I think it’s fantastic.
  • It is true that it does not operate with batteries, but bear with me while I explain.
  • This will last around 4 weeks, depending on how wet the environment is.

Don’t be concerned about the fact that it only lasts for a month since, according to its name, it is rechargable; you only need to recharge it till the clear gel on its face turns bright pink again. The producer promises that you may use it for a period of 10 years, which is incredible.


As a test, I just had approximately five plants that didn’t require a lot of water when I first started experimenting with indoor plant cultivation. My dehumidifier of choice was the Eva-Dry E-333 Renewable Mini-Dehumidifier, which performed well. Since it does not require any cables or even batteries to function, it is extremely portable. It was a breeze to put together. You’ll get the most out of this method if you have a grow tent or a room that isn’t too large. Now, the maker states that this little gadget would function with an area as large as 333 square meters, but I would argue that this isn’t true in practice.

  • It is best suited for 2 2 tents (or smaller).
  • As you can see, that’s only an ounce or two every week, which is only sufficient for a modest grow tent or box.
  • You can recharge this piece of jewelry.
  • Using a blue silica gel as the wet absorber, this gadget works effectively.
  • Don’t be concerned about the fact that it only lasts a month since, according to its name, it is rechargable; you only need to recharge it until the clear gel on its face becomes pink.


This product is not intended for usage. grow tents with a diameter more than 2 2 Because it cannot effectively remove moisture from a big area, this dehumidifier is not recommended. It is necessary to refresh by purchasing new moisture-absorbing gel packs.

2. Overall Best: Inofia Portable Dehumidifier With 4 Gallon Working Capacity

This is the best option for growers that have an area of up to 1500 square meters to work with. It comes with a built-in water tank with a capacity of 1.8L. The fact that it is an intelligent gadget that is simple to switch on and off with with a single button means that it is extremely user-friendly. This dehumidifier isn’t quite as large as it appears, but the quantity of moisture and water it can remove will astound you. It can be found here. It is quite small and performs well in medium-sized growing areas.

This means that, in addition to removing moisture from the air, it also guarantees that the air in your home or business is clean.


This product is extremely good in removing moisture from a wider area (up to 1,500 square feet). The digital user interface is straightforward to operate. Having the ability to regulate the humidity level to the required level


When the water tank is full, it is necessary to remove the water.

3. Best Dehumidifier For 4×4 Grow Tent: SEAVON Dehumidifier 35oz Dehumidifier (285 sq ft)

Despite the fact that this dehumidifier is little (it weighs just 3 pounds), it is effective. It is the most appropriate for tiny settings, such as a 44 grow tent. It can remove more than 35oz (4 cups) of moisture from the air in a single day. It includes an auto-shut mechanism that activates when the unit reaches its maximum capacity, making it ideal for growing in small spaces like as your living room. Its compact size and low noise level make it an excellent choice for a home dehumidifier.

A warning light on the device also informs you if you should be concerned that water will be gushing out quickly after turning it on.

Because of the compact size of this dehumidifier, it is not recommended for use in large settings. Even if you install the dehumidifier in an area that is larger than a 4×4 tent, you will most likely not notice any difference in the humidity levels in your grow space.


Extremely small and lightweight design It is quite effective in drawing moisture out of the air. It is possible to adjust the ideal relative humidity level between 40 and 80 percent.


It is not recommended for spaces greater than a 44 grow tent.

Why Run A Grow Room Dehumidifier?

So, why can we grow plants indoors without the need for a dehumidifier, and why is that? I’ve already addressed its most fundamental usage and purpose, which is to manage humidity in your grow room and prevent excessive moisture from building up in your environment. If you’re wondering how it accomplishes this, the answer is straightforward. It essentially draws moisture from the surrounding air. Of course, the moisture that it receives does not just evaporate. Moisture is collected and held in a pan or a container that comes with the product.

  1. Some humidifiers do not need the use of a container.
  2. In that case, the dehumidifier is merely equipped with a couple of tubing connections that might go to a collecting vessel or drainage.
  3. It is necessary to maintain a sufficient humidity level in your growing space in order to keep your plants healthy.
  4. Another possibility is the development of bud rot.
  5. It normally begins by hiding and growing inside a blossom.
  6. It would suffocate your air and kill your plants, among other things.
  7. Once molds begin to wreak havoc on your indoor garden, it’s as if you’ve started over from the beginning.

Evaluating Your Grow Room’s Dehumidification Needs

Knowing the size of your grow room is important information since it will help you decide how many dehumidifiers you will require and where each of them should be located. The number of plants you intend to raise should be taken into consideration when determining the size of your growing space. The amount of water you’ll need in a day will be determined by this, and after you know more about it, you’ll be able to easily estimate the amount of moisture and humidity your space should have on hand.

  • When it comes to temperature control, it’s best to maintain the room between 70 and 80 degrees Fahrenheit.
  • Flowers would have a greater chance of surviving in the upper range.
  • Having a high humidity level in your grow environment will make it difficult to use CO2 equipment effectively.
  • Providing that it is located in a secluded and cool location and that you do not intend to visit it frequently, further permit is no longer required.

Add at least 5 additional points for a grow chamber that will constantly be heated by humans, and another 5 points if the room has many entrances and exits.

How To Choose The Right Size DehumidifierFor Grow TentGrow Room

Avoid stressing over estimating the size of and number of dehumidifiers you should have because this is straightforward math. To illustrate what you should bear in mind while determining how your dehumidifier should operate, consider the following: If a plant wants one gallon of water per day, then a modest grow room with 20 plants will require twenty gallons of water per day on average. Because a gallon of water is equivalent to 8 pints, this equates to a total of 120 pints of water used in a day.

See also:  What Are The Best Tent Stakes

A pint of moisture is equal to one pound of moisture, thus a room with 20 plants requires 5 pounds of moisture every hour to keep them alive.

Of course, the larger the size, the more expensive it will be to purchase.

Things To Consider When Buying A Good Grow Tent Dehumidifier

Because humidity and temperature are closely related, it’s important to get a dehumidifier that can operate efficiently regardless of the temperature outside the home. Keep in mind that the cooler the environment within your home, the more likely it is that your dehumidifier will not be used to its maximum potential. The size of your dehumidifier will be determined by the number of plants you have and the size of your grow room, although you are free to purchase a large-capacity dehumidifier if you so choose.

There are dehumidifiers for both industrial and domestic use accessible to you.


If your grow area necessitates the use of multiple dehumidifiers, it is preferable if they are evenly spaced. I must emphasize that positioning dehumidifiers in the proper places of your grow tent or grow room is critical to ensuring that your plants reap the benefits of the dehumidifiers’ intended purpose. I cannot stress this enough. If you’re producing crops, putting it in the improper spot might have a negative impact on your yield or the lifetime of your plants in general. The dehumidifier should be placed in the middle of the room, on the same level as the lights, if possible, especially if you just want a single device to reduce the humidity in the space.

If you only have one dehumidifier in the room, and it is located in the middle of the room, you should not have any problems with airflow.

Just keep in mind to refer to your dehumidifier’s instruction manual for the precise spacing requirements.

What is the best setting for my dehumidifier?

The relative humidity levels in your location might reach as high as 80 percent at some points.

Even in a residential area, this is hardly an ideal situation. In all cases, 30 percent to 60 percent would be the optimal setting.

What should my humidity be during flowering?

Because the optimal humidity level is between 30 and 60 percent, it is best to retain the humidity level in the center of that range during the flowering period. Specifically, during the blossoming period, a humidity setting of 40 percent to 50 percent is recommended.

Are dehumidifiers expensive to run?

A basic dehumidifier unit with a capacity of 30 pints runs at a maximum of 280 Watts per hour on average. Using a dehumidifier throughout the day should only cost you approximately 50 cents per day if you use it all day. As a result, you just have to spend $15-$16 every month to cover the cost of it. Be aware that if the temperature in your home drops, the dehumidifier will most likely use more energy to extract moisture.

The Bottom Line

You may choose whatever dehumidifier you choose, but the most important thing is that it will function with your existing set-up. When searching for one, make sure you know what you’re looking for so that you don’t end up disappointed. Let’s conduct a brief rundown of all you need to know about the subject:

  • Take into consideration the space where you’ll be putting your grow tent, room, or box. This implies you’ll need to check the temperature and humidity, respectively. The quantity of plants you want to cultivate is critical in determining the performance of the dehumidifier you will require. This is because the position of your dehumidifier is critical to the efficiency with which it will operate.

SaleEva-dry E-333 Mini Dehumidifier, Pack of 1, White SandEva-dry E-333 Mini Dehumidifier, Pack of 1, White Sand

  • EASY TO USE: There are no spills or messes with this small dehumidifier. Just sit there and
  • A SMALL MINI DEHUMIDIFIER CAN GO A LONG WAY: The life expectancy of a super dry dehumidifier is 20-30 years. DESIGN THAT IS SMALL AND SLEEK: This tiny and portable design allows you to hang or

Originally from Arizona, Lindsey Hyland attended the University of Arizona’s Controlled Environment Agriculture Center, where she received her bachelor’s degree. While working on organic farms in both rural and urban settings, she continued to further her gardening expertise. She created UrbanOrganicYield.com in order to share gardening advice and strategies with others. If you have questions about succulents and houseplants, veggies and herbs, or just about anything in a backyard garden or hydroponics garden, she’s delighted to help you out!

How to Perfect Your Grow Room Dehumidifier Setup

Quest Dehumidifiers has provided sponsorship for this publication. It was clear to the team at East Coast Cultivation as they set out to create their new indoor grow facility in Rhode Island that one thing would had to be perfect: environmental controls. According to Joe Welch, CEO and co-founder of East Coast Cultivation, “managing your environment is the most important component in having a good grow.” ‘Once you lose control of your surroundings, the real crop-crushing difficulties start to take root,’ says the author.

Quest Dehumidifiers is a brand of dehumidifiers.

Either of these issues has the potential to damage a business and result in thousands of dollars in lost income.

According to Welch, the combination of this configuration with an HVAC system forms the foundation of a well-controlled atmosphere.

“It’s important to get the right size, positioning, and air flow,” said Coleman Retzlaff, a manufacturing representative at Quest Dehumidifiers, which distributes commercial units to hundreds of cannabis farmers around the US.

Strength in Numbers

It is the credo of farmers who are attempting to regulate their humidity levels: “Water in equals water out.” Although it appears to be straightforward, the reality is a little more convoluted. Considering that plants excrete virtually all of the water they absorb back into the atmosphere, cultivators in a sealed grow room are required to account for and remove that water from the air in order to maintain correct humidity levels. If a grower consumes 25 gallons of water per day and 5 gallons of that water is flushed down the toilet, the farmer is left with 20 gallons of remaining water.

  • “When we make this computation, it’s truly that straightforward,” Retzlaff explained.
  • Despite the fact that air conditioners may remove some moisture, they are meant to chill rather than remove water, and as a result, they cannot keep up with the demands of a growing environment.
  • Quest Dehumidifiers is a brand of dehumidifiers.
  • These are precisely the circumstances that might allow mold and mildew to establish a foothold in your home.
  • Choosing dehumidifiers with automated controls and appropriately sizing your units, according to Welch, is the single most important recommendation for controlling your humidity.
  • In order to determine how much water his flower room will consume while the plants are discharging the most water, Seth Lee, operations manager at Denver’s Greenlight Cannabis Company, performed calculations.
  • Lee acknowledges that his flower room may appear to be a little over-engineered—but he’d rather be safe than sorry in this case.

Perfecting Placement

Whether a grower is using a single dehumidifier or a legion of 10, the right location of dehumidifiers is critical to their efficacy. Knowing where to position dehumidifiers helps to maintain a stable atmosphere and decreases the chance of producing microclimates in which humidity rises and mold can take hold, which can cause health problems. Lee encourages farmers to provide an equal amount of space between each dehumidifier in order to ensure correct placement. It’s also critical for growers to pay attention to the finer aspects, such as orienting the filter side toward the center of the room and inspecting each unit on a regular basis to ensure it’s draining properly.

  • Seth Lee is in charge of keeping an eye on the grow area of Denver’s Greenlight Cannabis Company.
  • As grow rooms expand in size, Retzlaff believes that spacing is becoming increasingly crucial because it allows for more precise humidity management in different zones.
  • According to him, using this strategy helps to maintain a more consistent relative humidity in the space while also increasing energy efficiency.
  • The requirement for redundancy, according to Greenless, cannot be overstated.

In the long run, we’d rather have three units pulling 225 pints each rather than one unit pulling 700 pints. There’s no backup if that 700-pint unit breaks, and if it’s not repaired immediately, you run the danger of a humidity increase and mold development.”

Attention to Air Flow

Finally, knowing the layout of each room, as well as how air will move and mix in that area, is essential to ensure that any dehumidifier system maintains a consistent humidity level in a grow room. Growers require dehumidifiers that are evenly positioned over a lengthy room in order to generate a circular air flow. Retzlaff explained that if the space is narrow, discharged air may be pushed throughout the room to provide a uniform air mix across the plant canopy, even if only one dehumidifier is used.

According to Retzlaff, “We have the ability to duct our dehumidifiers from the supply and return ports in order to move air where farmers want it and in the manner that works best for their environment.” “That extra benefit can make a significant difference in maintaining regular humidity levels.” Check out Quest’s Grow Info website for more information on environmental management, mildew avoidance, and humidity suggestions, among other things.

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What’s The Best Grow Room Dehumidifier For Your Setup?

The issue with humidity is that it doesn’t care if you’re a basement hobbyist or the biggest, most successful commercial grower on the street. If you want to have a successful indoor grow, it will be necessary to control it. Humidity is controlled by a variety of factors, including room temperature, the number of plants in the space, and how much water is used. However, practically every indoor grower will eventually require the use of a dehumidifier—or a dozen of them. So, how do you choose which dehumidifier is the most appropriate for your needs?

What about the issue of capacity?

We spoke with two industry experts to assist us choose the finest grow room dehumidifier for hobbyists, caretakers, boutique and commercial growers: Gary Howard, owner of Urban Garden Center and managing director of Safe Alternatives Dispensary, and Clif Tomasini, of Quest Dehumidifiers.

Hobbyists And Humidity

A hobbyist is somebody who grows a few plants in their own house, whether in the basement or in a modest grow tent, for personal enjoyment. As for humidity, if your home or basement is well-insulated, has adequate HVAC, and is free of current moisture problems, Tomasini says there is a good chance you won’t need any additional humidity management measures. For the most part, home gardeners who have a limited number of plants will not require the use of a dehumidifier. Tomasini believes that if they do, a small residential unit will most likely suffice.” In addition, as plants age and water intake rises, we urge that gardeners keep an eye on the humidity levels because a humidity problem may arise rapidly and harm their buds.

Small, home-based dehumidifiers can also be beneficial, but they are inefficient and unreliable, according to him.

See also:  How To Get Rid Of Mildew Smell In Tent

This is due to the fact that the plant canopy begins to grow dramatically and will begin to retain moisture.

While it may be tough to make the decision to purchase a commercial unit, the money saved on power bills would more than compensate for the investment, according to him.

Caregivers—Coming To Terms With Dehumidification

The caregiver group encompasses a diverse cross-section of the increasing community, with many homes having at least one 10-light room, if not more. Because of the large size of the rooms, Howard believes that humidity management for caretakers is essential. In addition to lighting and air conditioning, it’s one of the most important areas in which Howard, a long-time carer, would never compromise. Humidity management is essential with this big grow since the plant canopy is considerably larger than what a hobbyist would be able to handle on their own.

  • The most difficult part for carers is coming to grips with the idea that they require commercial dehumidification services.
  • Tomasini expressed himself.
  • The majority of growers ultimately chose to begin with the cheapest units in order to handle a humidity problem.
  • In order to provide redundancy and to guard against “worst-case scenarios,” he virtually always suggests utilizing two225-pint units to ensure maximum protection.
  • “Once we have that figure, we can calculate how much humidity control we will require for an active grow.” We’ve found that 400 pints of dehumidification is the sweet spot on a consistent basis.”

Only The Best For Boutique

Precision is the name of the game for boutique growers, who strive to produce the highest-quality product possible by precisely controlling terpenes and THC levels. As a result, when it comes to environmental controls, quality and redundancy become the most important factors to consider, according to Tomasini. This degree of growth typically requires between 1,000 and 5,000 square feet of grow area. They are seeking for dependability and performance in every element of the grow, and this includes the dehumidifiers that they use.

“For a boutique cannabis producer, similar to a craft beer brewer, the reputation and success of their business is dependent on the quality of each harvest,” Tomasini explained.

In order to provide redundancy, Tomasini suggests a modular system in which numerous units are used in each individual area.

He frequently observes the top growers employing a couple of 225-pint units each room, which he considers to be the standard. This offers sufficient humidity control for all phases of the growing process and enables for appropriate backup in the event that one unit fails to function properly.

Commercial Growers—Efficiency And Layout

Maintaining proper humidity levels is essential for anyone who operates with more than 50 lights or more than 5,000 square feet of grow area. According to Tomasini, the layout and efficiency of a commercial farm are the primary concerns. According to him, “These organizations have chief financial officers who are scrutinizing things like power use and depreciation of capital assets.” Dehumidifiers that are made to last as well as those that provide a return on investment in less than a year after purchase are desired by consumers.

Units in this range give farmers with the redundancy and customisation that smaller units provide while still providing the capacity that they want, according to him.

To ensure that his clients’ dehumidifiers operate to their full potential, Howard spends time with them to identify not just which unit is the most energy efficient, but also how to plan up their grow rooms so that they get the most out of their dehumidifiers.

“The amount of electricity consumed on a commercial grow is enormous,” Howard explained.

Best Dehumidifier For Grow Tent [2022 Top Picks]

A humidifier or a dehumidifier will assist you in regulating the humidity in the room once your grow tent has been set up, depending on whether you want to reduce or raise the humidity in the space. First and foremost, the size of your grow tent should be taken into consideration while purchasing a grow tent dehumidifier. In order to make your job easier, we concentrated on dehumidifiers that were specifically designed for 44 grow tents. The success of your harvest is largely reliant on your decision to choose the most appropriate portable dehumidifier.

The following are our top selections.

Table of Contents

  1. Table of Comparisons for Grow Tent Dehumidifiers A Straightforward Purchasing Guide: Dehumidifiers for grow tents
  2. What is the use of a dehumidifier in a grow tent
  3. What many of dehumidifiers do you require
  4. Features of a dehumidifier
  5. Reviews of the best dehumidifier for grow tents
  6. Final Thoughts on Dehumidifiers
  7. Frequently Asked Questions

Grow TentDehumidifiers Comparison Table

Before you can buy a dehumidifier for your grow tent, you must first determine the size of the tent. For the sake of this article, we’ll be looking at 4×4 grow tents, which are quite simple to determine. If you have a larger or smaller tent, you should think about the size of your tent. The quantity of plants you are growing, as well as the amount of moisture present in the tent, must be taken into consideration after this. Additionally, you must be aware of the amount of water you feed your plants on a regular basis in order for the dehumidifier to perform optimally.

The following sections will go through the items you should know and consider before purchasing a 4×4 tent dehumidifier. The Complete Buying Guide may be found here.

Why do you need a dehumidifier in a Grow Tent?

A humidifier removes a significant amount of moisture from the air and stores it in a water tank since moisture cannot simply evaporate. The tank that comes with a dehumidifier is proportional to the size of the dehumidifier. The water from certain humidifiers does not need to be collected since it drains via the drainage system or gathers in a vessel. Other humidifiers are intended to reuse the moisture that they gather, which helps to keep the humidity levels stable. However, the most important purpose for using a dehumidifier is to keep your plants from becoming infected with a fungal illness such as powdery mildew or fungus.

Furthermore, excessive wetness causes the air in grow tents to get stale, resulting in the death of plants.

How many dehumidifiers do you need?

You might be wondering if you’ll need to purchase more than one dehumidifier to meet your needs. The size of your grow tent will assist you in determining the quantity of dehumidifiers that will be required to meet your requirements. In addition, the number of plants you are growing will inform you how much water you will require in a given day. As soon as you have a good idea of how much water you will need each day, you can calculate the humidity and moisture levels in your grow tent. Because we are concentrating on a 44 grow tent that can accommodate four to six plants, you may work with these numbers as a starting point.

The ideal temperature for your tent is between 70 and 80 degrees Fahrenheit, which is ideal for growing vegetables and flowers.

Dehumidifier features

When selecting the best dehumidifier for your 4×4 grow tent, it is critical to search for features that are unique to the product. The auto-restart function allows dehumidifiers to restart themselves after a power failure. A dehumidifier can help you avoid worrying about the humidity in your grow tent in the event of a power loss by allowing you to keep it running. It also allows you to devote more time to other activities rather than rushing back to your tent to check on your plants every now and then.

  1. These characteristics make dehumidifiers simple to operate and allow them to be fully automated.
  2. Digital controls provide you the ability to tailor the performance of any dehumidifier you purchase to meet the specific demands of your growing environment.
  3. This function enables you to connect your dehumidifier to outdoor drainage rather than an inside container, which is more convenient.
  4. You must check to see if the dehumidifier comes with the add-ons necessary to connect to a hose drainage system, or you must purchase them separately.
  5. An integrated humidistat, on the other hand, is included with a dehumidifier and detects the humidity level in the room and regulates the dehumidifier’s operation appropriately.

The simplicity of a washable air filter allows you to quickly and easily clear particles and germs that have accumulated in the filter over time. This function helps you save money because you won’t have to purchase another air filter as a result of it.

Best Dehumidifier For Grow Tent Reviews

The dehumidifier bundle includes a power adapter, a user manual, and a dehumidifier that is equipped with Peltier Technology, which is extremely quiet and prevents any unwanted noises from occurring while it is in operation. We would like to note you that it has a noise level of 38 dB, which is rather high. Because of its modest size, it won’t be difficult to locate a suitable location for it within your grow tent. Because it does not contain a compressor, it is rather light, albeit it is not the lightest item on the market by any means.

In your grow tent, there’s an air intake with a grid that efficiently removes microscopic particles in the air, leaving the air in your grow tent fresh and clean.

It is energy-efficient because of its design, which promotes energy saving.

The recommended working temperature for this dehumidifier is between 41oF and 122oF, since low temperatures will have an adverse effect on its performance.

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The Pro Breeze compact dehumidifier is seen here. It’s a little dehumidifier that can remove up to 9 ounces of water each day from the air. When it comes to a portable dehumidifier that is not going to break the bank, this dehumidifier is the greatest option available on the market. It has a water tank that holds 18 ounces. Pro Breeze Electric Mini Dehumidifiers should be used in grow tents that are up to 150 square feet in size in order to achieve the best results possible. This device is well suited for a 44 grow tent of appropriate size.

As you may assume, this tent is equipped with an auto shut-off mechanism, which automatically switches off the dehumidifier when the tank is completely depleted.

It operates at such a low volume that you will not be able to hear it operating while you are standing 2 feet away from your grow tent.

The use of Peltier technology allows it to be more energy efficient while maintaining the appropriate working temperature range of 59-86 degrees Fahrenheit.

The water collected by this dehumidifier is simple to remove from the unit. To begin, unplug the water container from the wall, remove the plug, and empty the container. Afterward, fill the water tank with the dehumidifier’s water and turn it on by pressing the power button.

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When it comes to the Hysure Portable Dehumidifier, “little but mighty” is the best way to describe it. Its 67-ounce tank allows it to remove a significant quantity of humidity from your grow tent, which is astounding. During operation, it is extremely quiet — its noise rating is around 33dB. The Peltier technology, which evaporates moisture without the need of a compressor, is responsible for the low noise level. 33dB. The absence of a compressor also contributes to the dehumidifier’s modest weight, although we have seen even lighter models on the market.

  • Going into detail about its operation, this dehumidifier hygienically and efficiently collects moisture from grow tents when the relative humidity (RH) is 80 percent and the temperature is 86 degrees Fahrenheit.
  • We recommend that you position the tent in the center of your 3×3 grow tent to ensure that it receives appropriate ventilation.
  • It is also important to ensure that the power adapter of this dehumidifier is not placed directly on the ground to avoid an electric danger.
  • In addition to temperature and space, airflow speed and humidity all have an impact on how well a small dehumidifier performs.

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The SEAVON Electric Small Dehumidifier is a small dehumidifier that runs on electricity. Features include: thermoelectric cooling technology, auto-shutoff, a 50.7oz tank, portability, a minimum working temperature of 41 degrees Fahrenheit, and LED lighting, among others. Because it is tiny, effective, and studded with a slew of functions, the SEAVON dehumidifier is one of the finest dehumidifiers for grow tents available on the market. In addition to having a 50.7oz tank capacity, it has the ability to extract as much as 13.5 ounces of moisture every day.

The dehumidifier, like its competitors on the market, is equipped with an auto-shutoff mechanism, which automatically shuts off the machine when the tank is completely depleted.

The water tank may be removed and replaced with relative ease.

The ideal operating temperature range is between 59 and 86 degrees Fahrenheit, because this dehumidifier will not operate below 41 degrees Fahrenheit.

This dehumidifier will function well regardless of where it is placed in the grow tent, however we recommend that it be positioned in a central location that is easily accessible so that you can empty the water tank quickly and efficiently.

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  1. Is it permissible to use a dehumidifier in my grow tent? Yes, you may use a dehumidifier in your grow tent to keep the environment comfortable. Before putting a dehumidifier in the tent, make a note of the size of the tent and the number of plants that will be within. Using a big dehumidifier in an enclosed grow tent will negatively effect the health of your plants. Is it good if I use the water from my humidifier to water my plants instead of tap water? Don’t water your plants with the water that comes out of your dehumidifier. Due to the fact that the dehumidifier eliminates numerous germs and microorganisms from the damp air, and they are trapped inside the water, this is the case. Is it true that a dehumidifier consumes energy? Not all dehumidifiers on the market are energy efficient
  2. However, many of the models available are. As a result, you’ll notice that they’re utilizing less energy. In order to keep my grow tent dry, what size dehumidifier do I need? We recommend that you make a note of the number of plants in your grow tent as well as the size of the tent in order to choose the appropriate size dehumidifier for your growing environment.
See also:  How To Warm A Tent Safely

Final Words

Finding the correct dehumidifier is only one stage in the process; ensuring that the dehumidifier lasts for an extended amount of time is an additional factor to take into consideration. We recommend that you use dehumidifiers that are capable of handling small and medium-sized grow tents, since this is what the majority of us use.

Top 5 Best Dehumidifier for Grow Tent (Reviews Updated in 2021)

If you want to grow plants, particularly cannabis, in an indoor setting, you’ll need grow tents that are large enough to accommodate your needs. However, merely purchasing a grow tent isn’t enough to ensure success. You must create the ideal circumstances in your tent in order to achieve good growing. The Most Effective Dehumidifier for Grow Tent

  1. Keystone KSTAD50B 50-Pint
  2. Frigidaire FFAD7033R1 Dehumidifier
  3. Pro Breeze Electric
  4. HOmelabs 70-Pint Dehumidifier
  5. SEAVON Electric (Editor’s Choice)
  6. Keystone KSTAD50B 50-Pint

The most important thing is to get the optimal humidity levels. Determining the best dehumidifier for a grow tent is therefore absolutely necessary.

The Top in the Industry

SEAVON is the manufacturer of the first best dehumidifier for grow tent product in our ranking list. This little device with a maximum capacity of 500 mL processes roughly 250 mL of moist air each day and is best suited for use in small rooms and tight places. The dehumidifier works best in rooms that are 180 square feet or larger. The SEAVON Electric saves a significant amount of room, and its compact design makes it extremely practical. Move it around the house if necessary, and you can even take it with you to your grow rooms if necessary.

Its light will turn red to alert you that it needs to be emptied.

Built-in Thermo-Electric Cooling technology on this machine allows it to run without the use of a compressor, resulting in only a whisper of noise as it silently works in the background while you are using it.

The SEAVON Electric dehumidifier is an excellent choice for this size dehumidifier, however it is not the greatest solution for all conditions.


  • Auto-shutoff feature
  • Water tank may be removed with relative ease
  • Simple to use
  • Very quiet and efficient
  • And transportable. A fantastic option for those with little room


  • Does not function at temperatures below 41 degrees Fahrenheit. Only 250ml per 24 hours, which is a very low capacity.

2. Frigidaire FFAD7033R1

In our list of the best dehumidifiers for a grow tent, the second product on the list comes from Frigidaire, a well-known consumer appliance company that has been in business for more than a century. The FFAD7033R1 Dehumidifier, which has a high capacity of 70 pints per day, demonstrates the workmanship and quality of their work once more. Because it operates around the clock, the dehumidifier protects your house from mildew and mold by drying out the air that it processes. It also aids in the elimination of airborne microorganisms that can make breathing difficult, resulting in cleaner and higher-quality air in your residence.

The simple settings of the easy humidity control allow you to alter the quantity of moisture in the air with no effort.

It is exceptionally simple to transfer the FFAD7033R1 Dehumidifier from one room to another because to the machine’s SpaceWise technology, which is built into its mobile design, which features a top handle, integrated side handles, and caster wheels.


  • Frigidaire is a well-known brand, and this product is from them. Craftsmanship of exceptional quality
  • Ability to produce 70 pints per day
  • SpaceWise moveable design
  • Effortless operation
  • It is simple to move
  • Electronics Control with Ready-Select

Con s

  • After a few years, a sensor might fail, resulting in a “F0” reading error on the display. When compared to the other dehumidifiers on our list, this one has a shorter lifespan.

3. Keystone KSTAD50B Energy Star 50-Pint Portable

A dehumidifier such as the Keystone KSTAD50B is ideal for someone who has a rather big grow tent and wants to preserve their most valuable belongings, equipment, and automobiles secure from rust, mold, and musty aromas. This dehumidifier filters 50 pints of moisture each day in a space up to 3,000 square feet, and it may operate continuously (21000 cubic feet). The KSTAD50B is equipped with electronic controls and an LED indication display to make it simple to operate. It also has a full alarm to notify you when it’s time to empty the water tank, which you can see for yourself thanks to the transparent water level indication on the LED indicator display.

We consider the KSTAD50B to be one of the best grow tent dehumidifiers available because it is Energy Star compliant, which means it is an energy efficient dehumidifier that conserves energy and saves money on electricity, resulting in lower operating costs for both you and the environment when compared to other dehumidifiers on the market.

It will inform you when it is time to clean the air filter, which will prevent your machine from going into overdrive in order to compensate for the dirty filter.


  • Certified by the Energy Star program
  • Electronic controls and an LED display that are simple to operate
  • System for Tank Alerts
  • Exit for the drain pipe to allow for continuous operation Capable of filtering up to 50 quarts of moisture per day
  • A function that shuts down the computer automatically
  • Filter that can be washed


  • When the water storage container is removed, the dehumidifier does not switch off. The water tank must be drained quickly – it cannot be placed down because the bottom is not flat
  • It must be emptied immediately.

4. Pro Breeze Electric Mini

When the water storage tank is emptied, the dehumidifier does not switch off. There’s no way to put the water tank down since the bottom isn’t flat; it has to be emptied right away.


  • Miniature in size, transportable in weight
  • This device removes 18 ounces of water moisture from the air each day. During a power loss, the system will automatically shut down and resume. With Peltier technology, you may operate at a whisper quiet level. Affordable


  • Under 41°F, this product will not function properly. Non-certified by the Energy Star program

5. Other models we looked at

The following top dehumidifiers for grow rooms were included in our dehumidifier review ranking because they will undoubtedly manage the moisture level by filtering big pints of water and collecting surplus humidity: Inofia 30 Pint Small Dehumidifier, AUZKIN Compact Dehumidifier, VIVOSUN Dehumidifier, ALORAIR Mini Dehumidifier, Frigidaire FAS504DWD Dehumidifier, Pohl Schmitt Electric Dehumidifiers, Letsport Upgraded 68oz Dehumidifier, and Ivation GDM30 are some of the dehumidifiers on the market today.

Various designs (e.g., small design, elegant design, portable design) and features are available for these grow tent dehumidifier devices, all of which are energy efficient and Energy Star certified, making them suitable for low power usage.


When it comes to indoor cannabis cultivation (aside from things like LED lights and) or indoor gardening plants, one of the most essential things to realize is that the finest plants require an ongoing intake in the form of liters of water every day. When there is an excessive amount of moisture in a grow tent, the plants will begin to utilize their leaves to absorb and eliminate surplus moisture from the environment surrounding them over time. When the humidity in a grow box is low, the plants take water via their roots instead than through their leaves.

  1. Aside from that, maintaining the proper conditions (eg., humidity and sunshine levels) in your grow tent can help your cannabis plants grow stronger, healthier and more leafy as a result of their improved growth.
  2. White powdery mildew is one of the most prevalent problems that cannabis growers have while growing in high-moisture settings.
  3. Fortunately, a dehumidifier, humidity control, and correct and optimal airflow in your grow tents are all you require for the operation of preventing this form of fungal development and creating a perfect atmosphere for your plants to thrive.
  4. The difficulty in identifying bud rot is that it is difficult to detect.

Consider purchasing the finest tent dehumidifier for grow room to assure just the greatest results and to avoid experiencing this type of aggravation in your growing environment.

Where to Place in Your Grow Area

When determining the best location for your dehumidifiers, you’ll need to consider three factors: efficiency, redundancy, and accessibility. Depending on the size of your grow tent area, whether it’s small or large in square feet, you’ll need to balance three factors: efficiency, redundancy, and accessibility. To maximize dehumidifier efficiency, you must position your dehumidifier in such a way that it continually covers all of your plants while using the least amount of electricity possible.

Maintaining the optimal moisture level in the grow area is critical in cannabis production; as a result, you must guarantee that if one of your grow room dehumidifiers fails, your other dehumidifier is capable of picking up the slack and meeting the additional demand without compromising crop health.

What Should My Humidity Be During Flowering?

Essentially, the humidity level indicates how much water vapor is currently present in the atmosphere. Relative, specific, and absolute moisture measurements are all methods of quantifying moisture content. As a grower, the relative humidity (RH) in the grow chamber will be the most important factor to consider. If the air is humid, the relative humidity level measures how much moisture is present in the air in relation to its maximal capacity to store water at a certain temperature. During the blooming stage of marijuana, the ideal relative humidity (RH) for grow tents is 40-50 percent.

Is this Expensive to Run?

Being aware of how much it costs to run a dehumidifier for a grow tent is vital, especially because you’ll need a number of them depending on the size of the space you’re working with. A basic model dehumidifier consumes around 280 Watts per hour of electricity. Assume that the current electricity tariff in your square area is 15 cents per kilowatt hour. Under these conditions, a dehumidifier for grow tents consumes around 4.2 cents of electricity per hour of operation. It costs around one dollar every 24 hours to run the dehumidifiers in your grow rooms.

That is why we propose that you purchase Energy Star certified dehumidifiers since they are inexpensive to operate, consume less power, consume less energy, and provide superior energy efficiency, allowing you to save a significant amount of money on energy bills over time.

Wrapping It Up

This is only a brief overview of the information you will need to know about dehumidifiers for your grow tent.

We hope that our helpful guide supplied you with the most important information you need to maintain a healthy balance of moisture in your grow room environment. You can cultivate some very great cannabis plants in your home if you have a decent dehumidifier.

Table of Contents

Testimonials for Grow Tent Dehumidifiers

  1. The SEAVON Electric Mini Dehumidifier, Keystone KSTAD50B 50-Pint Dehumidifier, Frigidaire FFAD7033R1 Dehumidifier, Pro Breeze Electric Mini Dehumidifier, hOmelabs 70-Pint Mini Dehumidifier, and the hOmelabs 70-Pint Mini Dehumidifier are all excellent choices.

How to Select the Most Appropriate Dehumidifier for Grow Ten

Additional Reading

  • The best commercial dehumidifier, the best crawl space dehumidifier, the best basement dehumidifier, and the best dehumidifier for a grow tent are all excellent choices.

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