10 Best Dehumidifier for Grow Tent – Review and Guide 2021

Feeling worried about the excessive moisture, allergens, odor or different mildews growth in your grow tent? This is a major cause for concern. To mitigate your worries, we reviewed hundreds of Dehumidifiers and created a simple list of the best dehumidifier for grow tent/ grow room.

After more than 230 hours of research over Three years, including 290 -plus hours of real-world testing on 30 different models, the HOmelabs Dehumidifier remains our pick.

For the unbalanced humidity, your plants are prone to struggle with regular healthy growth. However, to experience a colossal harvest, you need to know that every plant requires a different level of humidity.

10 Best Dehumidifier for Grow Tent & Grow Room

premium choice
Size: 15.2 x 10.2 x 19.7 inches
Airflow rate between 165-188 CFM
Removes 22 pints of moisture every day
budget friendly
Size : 7 x 6 x 11 inches
6-ounce water tank capacity
Removes 9 ounces of water per day
our top pick
Size : 9 x 8.25 x 2.88 inches
Lasts 20-30 days before recharging
Removes up to 4 to 6 oz of moisture per day
Size : 6.5×5.3×8.5 inches
25WETL certified adaptor
Dehumidifies 250ml moisture per day
0.8 gallons tank capacity
24 hours auto shut off
Removes 22 pints of moisture per day
Size : 12.2 x 8.2 x 17.3 inches
Peak noise level at 46 dB
Removes 30 pints of water per day
Sleek and portable design
Removes odor and bacteria
Automatically shuts off when tank is full
Size : 6.5 x 8.5 x 5.3 inches
16 ounces Water tank capacity
Easily portable with small and nice design
Size: 10 x 9.6 x 19.5 inches
Includes timer and fan speed settings
Removes up to 11 pints of water every day
Size : 11.6 x 15 x 24.4 inches
24-hour on/off timer
Highest noise level of 51dB


hOmeLabs Energy Star Dehumidifier

Key Features

  • Size dimension: 15.2 x 10.2 x 19.7 inches
  • 1-gallon water tank capacity
  • Sleek and modern design
  • Airflow rate between 165-188 CFM
  • Adjustable settings for moisture level
  • Removes 22 pints of moisture every day

If you are looking for a dehumidifier for large grow tent that effectively combats with moisture, mold, mildew, or allergens, HOmelabs offer the best for your convenience.

The manufacturers efficiently create an approachable and intuitive product for the best use. The immense benefits of the HOmelabs 1500sq dehumidifier make it user-friendly.

First, it features with largest capable 1500SQ FT dehumidifier. It effectively removes 22 pints from the air from the large-sized room.

Second, the design of the HOmelabs provides an aesthetic look. The sleek, clean, and suitable built-in wheels and handles increase the stability of it.

Another attractive feature that comes with the dehumidifier is the built-in pump compressor.

The turbo mode accelerates the fan speed to CFM 165-CFM188 for reducing bad odor and moisture. However, the device comes with an excellent touch panel. Also, it includes automated shutoff, defrosts, restart, turbo mode for beneficial use.


  • Easy to use.
  • Quiet and attractive dehumidifier.
  • The wheels are super easy to move.
  • It hauls out plenty of water from the air.
  • The sleek design of the device is well-built out.


  • The plastic container is not smooth to work easily.


Pro Breeze Portable Mini Dehumidifier

Key Features

  • Size dimensions: 7 x 6 x 11 inches
  • 12 month warranty
  • 6-ounce water tank capacity
  • Auto shut-off when tank is full
  • Lightweight, Compact and Portable
  • Removes 9 ounces of water per day
  • Energy efficient and quite mechanism

Are you looking for the Best Dehumidifier for 4×4 Grow Tent? if yes, the pro breeze is just only for you.

Pro Breeze mini dehumidifier strives for giving the most energy-efficient and quiet operation. This leading company provides exceptional value to its products, especially in the air purifiers.

TIt ideally fits the small space engrossed with the latest Peltier technology. The following features must make you take the final decision for the happy purchase we think.

First, This small unit is capable to extract 9 ounces of water daily. It ideally fits for 215SQ Ft. space with at least 16-ounce water tank capacity.

Second, the auto shut off function is another spectacular feature of the Pro Breeze. When it requires any water drainage, the LED light immediately turns on. It performs great at dispensing water easily.

The Thermo-electronic cooling technology comes with this dehumidifier, It helps run a noise-free operation in your hydroponic grow tent with low energy consumption. Another aspect of the unit is the reduction of 9 ounces of moisture.


  • Easy to setup and use
  • Minimizes the humidity.
  • Compact and functional.
  • Cheap dehumidifier for grow tent
  • Lightweight and portable dehumidifier
  • Automatically switched off when the tank is full.


  • No pretty issues found with this product to annoy you.


Eva-Dry Wireless Mini Dehumidifier, White

Key Features

  • Size dimensions: 9 x 8.25 x 2.88 inches
  • Includes silica gel beads
  • Lasts 20-30 days before recharging
  • No cables or batteries needed
  • 5-year warranty, with 10 years lifespan
  • Best dehumidifier for small grow tent
  • Removes up to 4 to 6 oz of moisture per day

If you are looking for the best dehumidifier for 3×3 grow tent, this unit will be the perfect for you.

Eva-dry mini dehumidifier has been ruling the industry with high standard quality products. When too much humidity in your 3×3 grow tent, the E333 makes you get rid of the maximum humidity with the full capacity.

The device is completely ready for 8-10 ounces of moisture absorption. First, the impressive silica gel technology must drive your sense to buy this unit. This renewable solution makes its place at any location up to 333 cubic feet for moisture reduction.

Second, the E-333 mini dehumidifier comes with an indicator window. The crystal associated with the indicator leads it to the color change from orange to green. The green color shows that the unit is completely ready for renewal of the unit. Another impressive feature is the unique design of the unit. It seems like there is no water tank with it.

The small plastic frame surrounding the silica desiccants efficiently removes excess moisture from the air. However, the complete E-333 package silently strives to make you feel at ease with a moisture-free environment for up to 10 years.


hOmeLabs Energy Efficient Small Dehumidifier

Key Features

  • Size dimension: 6.5×5.3×8.5 inches
  • Does not overheat
  • 25WETL certified adaptor
  • Energy saving and cost efficient
  • Lightweight and easily portable
  • Dehumidifies 250ml moisture per day

If you are looking for the best Energy Efficient Small Dehumidifier, this one the clear winner by restoring freshness and a moisture-free environment.

HOmelabs are special for a well-built product with intuitive and approachable features. The engineers strive to produce a high-quality product with no mechanical issues for convenient use.

Let’s read about the excellent features of it. First, the HOmelabs Small Space Dehumidifier comes with a 25WETL certified adaptor. This effective part of the device saves energy and prevents overheating the unit quickly.

Second, the 16 ounce capacity of the mini dehumidifier is capable of extracting minimum of 250ml moisture per day round. This makes the enclosed spaces fresh from polluted air.

Third, it features automated shut-off functional parts. It shoes a LED indicator signal light when the tank is full. Another positive aspect of this unit is the small dimension of 6.5 x 5.3 x 8.5 inches. This lightweight product is easily transferable from one place to another.

Need more reason to buy this dehumidifier?  

Well, This HOmelabs dehumidifier product is thermoelectric with adequate power supplication. You can run the unit with a noise-free operation with a minimal 110V power supply.


  • Safe to use.
  • Energy-efficient.
  • Performs quiet operation.
  • Prevents maximum moistures.
  • Reduces dust mites, mold, and mildew.
  • Affordable dehumidifier for grow room.


  • This device has no drain outlet.


Vremi Energy Star Medium Dehumidifier

Key Features

  • 0.8 gallons tank capacity
  • 24 hours auto shut off
  • Easy to use with memory feature
  • Modern look with beautiful deign
  • Removes 22 pints of moisture per day
  • Best Dehumidifier for Medium grow Room

Another best dehumidifier for large grow room is Vremi, popular for its relentless efficiency to remove moisture with the best humidity control at any stage.

This energy star dehumidifier is elegant for purifying the environment with clean and fresh air. You can easily place it to prevent mites, mold, or other harmful allergens.

First, Vremi has 1500SQ FT dehumidifying capacity. This is enough to reduce 22 pints from the air each day. That’s how this complete unit efficiently absorbs moisture with low energy consumption.

Second, an attractive and effective design must grab your attention. The well-designed moisture maniac style comes with the unit.

The sleek and fresh look including wheels and handles performs effective performance with a quiet fan as well.

Third, it incorporates a turbo mode. This effective functional part of the unit accelerates the fan speed from CFM 129-CFM 138. As to that, the environment remains odor-free and remove maximum moisture from the grow room.

Moreover, it comes with easily attached wheels. That’s why it is portable enough to carry from room to room.


  • Lightweight and User-friendly
  • Looks great with an elegant design.
  • Best portable dehumidifier for large grow room
  • Has a capacity of holding 1-gallon water in the tank.
  • Includes gravity-fed drain hose for superior drainage.
  • Efficient for odor, bacteria, molds, and moisture reduction.


  • No major problems found. A few customers complained for a bit noisy part of the product


Inofia 30 pints Dehumidifier – Best for Large Grow Room

Key Features

  • Size dimensions: 12.2 x 8.2 x 17.3 inches
  • Peak noise level at 46 dB
  • Energy-efficient dehumidifier
  • 0.5 Gallon water tank capacity
  • Removes 30 pints of water per day
  • Built-in humidistat with auto-shutoff and auto restart feature

Inofia 30 is another best dehumidifier for large grow room on our list for its superior humidity control with maximum intelligence. It highly keeps the applicable space comfortable and makes you feel relax. The settings and operations are easy to run with the control panel.

First, the Inofia comes with a powerful compressor with 112 CFM. This system has the ultimate capacity to remove up to 4 gallons of moisture daily up to 1056 square feet of space.

Second, it features intelligent humidity control. It automatically stops and restarts when the targeted humidity is being sensed.

Third, the effective control panel is equipped with 4 buttons, indicators, LCD. With the adjustment, you can easily manage the humidity, auto on/off timer, fan speed, etc. efficiently.

This 30-pint dehumidifier is the best for at least 4 gallons of moisture removal regularly. There is a 4-pint water reservoir system associated with the Inofia 30. This convenient drainage is very handy to use.


  • Noise-free.
  • Easy to set up.
  • Easy operation.
  • Suitable for little space.
  • The drain hose is easy to use.


  • A few users complain about the small tank storage.


Frigidaire 50-pint- Best for Large Grow Room

Key Features

  • Noise free mechanism
  • Comfortable electronic controls
  • Removes odor and bacteria
  • Sleek and portable design
  • Automatically shuts off when tank is full

Worrying for the immediate reduction of the mold and mildew? Frigidaire FAD504DWD strongly combats to prevent excessive moisture. The FAD504DWD unit has a higher capacity for consistent operation with electronic control. Energy star efficiency is simply the best.

Need to know why it is the best one? Let’s read on the features. The unit features the full tank alert system including an auto shut off mechanism.

This indicates the time when the water tank is full or empty to the users. Space-wise portable design is another excellent technology for the FAD504DWD 50-pint Dehumidifier.

The top handles and wheels concluded with the design make it easy to move from room to room. The Frigidaire comes with an excellent indicator and filter. They are strong enough bacteria and odor reduction.

Moreover, the entire system is functional with electronic controls. That’s why it is easily accessible to use. Also, it eliminates airborne bacteria produced by excessive moisture.


  • Great design.
  • Allows noise-free operation.
  • Large capacity dehumidifier.
  • Informs you of the current humidity.
  • Removes unwanted moisture easily.


  • The output air is comparatively warm.
  • The unit seems very heavy for the large capacity tank.


Eva-dry Edv-1100 Dehumidifier

Key Features

  • Size : 6.5 x 8.5 x 5.3 inches
  • Auto-shut off feature
  • 16 ounces Water tank capacity
  • Easily portable with small and nice design
  • Low noise mechanism with whisper technology
  • Very low power input, saving energy and cost
  • 1-year manufacture warranty

Eva-dry Edv Petite dehumidifier is the best for small grow tent like 2×4 . It is ideal to prevent extra humidity issues up to 1100 cubic feet. The unique features of this thermo-electric dehumidifier are good enough for perfect humidity control.

First, the Edv-1100 comes with less noise output feature with the thermoelectric control unit. It approximately generates 50.9 dB that ultimately manages to keep noise low.

Second, Eva-dry Petite Dehumidifier comes with manufacturer specified power. Ultimately it saves your hard-earned money with low energy consumption. Third, the unit is well-built with high-quality material. That’s the reason for its stability for constant usage.

Need another reason to buy this dehumidifier?

The renewable reservoir is equipped with the unit. It superiorly absorbs nasty odors and removes airborne bacteria and fungus from the environment. Again, it has the plug and plays set up the system. The entire dehumidifying process becomes easier with the plug on and the automated shut off system. 


  • Safe to use
  • Portable dehumidifier
  • Runs quiet operation.
  • Ideal to fit for small space.
  • Includes LED light system.
  • No battery required to run it.


  • No major issues are there but a few customers complain about poor fan quality.


Ivation mini Dehumidifier – Best for Small Grow Tent

Key Features

  • Size: 10 x 9.6 x 19.5 inches
  • Compact and lightweight body
  • Adjustable humidity level settings
  • Includes timer and fan speed settings
  • Removes up to 11 pints of water every day

If you are looking for the best dehumidifier for a small grow tent for powerful air circulation to keep a fantastic and comfortable environment, Ivation smartly manages the air free from moisture. Ivation 11 pint dehumidifier innovate smart technology for ideal humidity control.

First, the considerable construction with great design simply offers you low energy consumption. First, the unit comes with a compact compressor dehumidifier. The ionizer is capable enough for at least 11 pints of water removal up to 216 SQ FT. space.

Second, the smart touch operation control unit is another spectacular feature of this humidity control device. The convenient display regulates you to monitor the current humidity level of the grow room. Here, it includes an integrated air purifier.

The device accelerates the breathability by the created fresh air. The bucket and drainage system is another convenient feature. It regulates consistent dehumidifying. The Ivation Compressor Dehumidifier has a removable water reservoir. This water tank makes you alert when it is full with the hose and route water mechanism.

The unit is equipped with a humidity sensor. That’s why; it becomes comfortable for users to know the current room temperature/humidity level. Another excellent feature is the smart technology system. 


  • Versatile and stable.
  • Has an optional timer.
  • Has self-regulating technology.
  • Includes a touch panel displaying unit.
  • Integrated compressor for improved efficiency.
  • Provides fresh air free from allergens, dampness, and nasty odors.


  • Careful attention is needed when using the sensor device.


Frigidaire 70 Pint grow room Dehumidifier

Key Features

  • Size : 11.6 x 15 x 24.4 inches
  • 24-hour on/off timer
  • Removes harmful bacteria
  • Highest noise level of 51dB
  • Low energy use and cost-saving
  • Dehumidifies 70 pints of moisture every day
  • 1-year warranty

The Frigidaire FFAD7033R1 is another best dehumidifier for grow room that not only effective to remove moisture and mildew but also for bacteria removal. An adequate percentage of humidity will prevail in your grow room with this controller unit. First, this energy star FFAD7033R1 unit comes with the ready select electronic control device.

first, The digital humidity readout manages 24 hours on/off timer to regulate the activities with great efficiency. Second, the low-temperature operation comes with an energy-efficient feature for the unit. It saves light, temperature, and money for the users.

Third, the Frigidaire unit has a standard 115V electrical outlet. That’s how this 70-pint energy star performs a consistent operation to eliminate the harmful bacteria from the air. Another beneficial feature is integrated handles and caster wheels. That’s why it is portable enough to carry from one place to another.

However, the device comes with an excellent plastic drainage adapter. So the water draining task becomes easier to handle well. We recommend this dehumidifier for medium growing room. 


  • Portable and easy to clean
  • Performs cooler operation.
  • Eliminates bad odors and moistures well.
  • The elegant and space-wise design makes it worth to use.
  • This unit can drop the humidity level at an excellent percentage.


  • Sometimes it may cost more electricity to run the device.

FAQ About Grow Tent Dehumidifiers

What are the Ideal Temperature and Humidity for Grow Tent?

It depends on what plants you tend to cultivate in your grow tent. For example, for vegetable plants, the ideal temp is 70-78 degrees F. And the humidity is 45-55%. At the flowering stage, the ideal temp is 68-75 degrees F, and the humidity is 35-45%.

In the drying grow room, the ideal temp is 65-74 degrees F, and the relative humidity is 45-55%. If the humidity is too low, you can use a humidifier for grow room

What Should the Temperature and Humidity be in a Grow Room?

The young plants require at least 65-70% humidity at the initial stage. In the drying grow room; the ideal temp is 65-74 degrees F.

Where to Place a Dehumidifier in Grow Room?

The ultimate placement of the dehumidifier can be both inside and outside of the grow room. It depends on two crucial factors. Those are the grow room/ grow tent size and air movement.

For limited sized, you can put the dehumidifier outside. For 200m3 /h air capacity extractor, put it outside. When the grow room is with 300m3/h air circulation, you can place it inside.

What is the best dehumidifier for 2×4 grow tent?

A 30-pint dehumidifier is ideal for a small 2×4 grow tent. Most dehumidifiers in the 30-pint range can cover up to 250 square feet of space and would be perfect for your needs. We recommend the Ivation as it provides an impressive coverage of up to 215 square feet. 

What is the best dehumidifier for 3×3 grow tent?

A 3×3 grow tent is still a moderately small grow space. A 30-pint dehumidifier will work in such grow spaces perfectly, with the ability to draw up to 20 ounces of moisture from the air. The VIVOSUN Mini Dehumidifier is among the best small grow tent dehumidifiers for small spaces up to 269 square feet.

What is the best dehumidifier for 4×4 grow tent?

Get the best 40-pint dehumidifier for 4×4 grow tent. It should be able to pull about 250ml of moisture a day and keep relative humidity at around 50%. You can choose the Eva Dry E-333, whose coverage is about 333 cubic feet.

What is the best dehumidifier for 5×5 grow tent?

A 40 or 50-pint dehumidifier is ideal for 5×5 grow tent above 2000 square feet that feel damp and smell musty. It is great for places that experience frequent mold growth or where moisture is visible.

What is the best dehumidifier for 10×10 grow room?

A 10×10 grow tent is definitely a large space. You’re better off choosing a 70-pint Frigidaire FFAD7033RI dehumidifier to help in combating moisture and microbes in a large grow room up to 4500 square feet.


The best dehumidifier for grow tent is a crucial part to enjoy colossal growth of the plants. Humidity plays a vital role in the cultivation of crops in your grow tent.

Invest the worth dehumidifier for the flexible drawing of the moisture, allergens, mold or mildews. Choose one of the mentioned lists and make sure of the refreshing growth of your plants.

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