The Best Dehumidifier for Grow Tent & Room – Reviews & Ratings

Last Updated on August 22, 2020 by The Dehumidifier Experts

Humidity does not discriminate, it destroys more than just wood, furniture and so on. It can destroy those cannabis plants you are growing if you do not take the right steps to protect them from the high humidity levels.

All you have to do is find the right dehumidifier and make some simple adjustments and you should be able to keep humidity from harming your marijuana plants.

The one we liked best is VIVOSUN Small Space Mini Dehumidifier for Grow Tent

Top 5 Best Dehumidifiers for Grow Tent & Room According to Our Research

A Dehumidifier Inside Grow Tent

Is a smart choice because the amount of water you are using and the number of plants inside the grow tent affect the humidity levels. Keeping the humidity levels down so your plants do not get ruined is important.

Plants contribute to the rising humidity levels so you need to control the space in your grow tent and keep the atmosphere healthy for those plants. The key is to get the right sized dehumidifier and if your grow tent is small, look for a small unit.

Can I put a dehumidifier in my grow tent

Yes you can and it is not a matter of ability but a matter of necessity. Your grow tents and rooms will have humidity issues so placing a dehumidifier inside will help your growing business avoid losing product and incur extra expenses.

Depending on the size of your grow tent, you should not have to go too large. You do not want to do any overkill when it comes to removing humidity. Most large dehumidifiers shut off when the humidity levels are reduced but they may still be overkill

best dehumidifier for grow tent

Things to Consider for Grow Tent Dehumidifier

Just a short list of items should watch out for when searching for a great dehumidifier for your grow business:

  • Features - you want as many as you can get if you have a large operation
  • Capacity - larger is better here when you have a lot of plants to watch over
  • Functions - continuous drain is the best way to go that way you do not have to interrupt other duties
  • Energy Efficiency - one of the two standards that make a good dehumidifier
  • Warranty - make sure it is a good one that lasts for awhile
  • Price - watch the price and do not pay too much

Reviews of the Best Dehumidifier for Grow Tent on the 2020 Market

VIVOSUN Small Space Mini Dehumidifier for Grow Tent Review

Size does not matter and sometimes the smaller the size the better the results. When you are doing plant cultivation this mini dehumidifier handles the humidity issue in smaller grow tents.

Its easy to use operation just requires you to push the rocker power switch and the device turns on and goes to work fast. Once it gets to work, you can get 400 ml of water removed every day and the unit places that excess moisture in the almost 1/2 gallon water tank.

While it may be small, only approx. 7 by 5 by 11 inches overall, it works in temperatures ranging between 59 to 113 degrees F. That small size and its easy to grab handle make sure this device remains nice and portable. You should not have any trouble relocating it.

The auto shut off feature is standard on this dehumidifier giving you peace of mind that there will be no overflowing of the tank. This device handles over 200 square foot grow tents

What We Liked

  • Small size for small spaces
  • Carry handle
  • Good sized water tank
  • Nice moisture removal capacity

What We Didn't Like

  • Not good for microgreen cultivation
  • Not very powerful
96 /100
Our Ratings

SEAVON New Electric 2020 Mini Dehumidifier review

If your grow tent is less than 170 square feet and 1500 cubic feet, then this is the dehumidifier for you. It too is a one button operating dehumidifier and its simple operation means you can concentrate on other duties. For example monitoring your plant’s nutrient intake.

As it works, the device will pull about 16 ounces of moisture out of the air in your grow tent each day. Then it will deposit that moisture into your 500 ml water tank. Its built-in thermo cooling system keeps the dehumidifier energy efficient as well as quiet when on.

The unit will work in temperatures between 59 and 89 degrees F and it also has an auto shut off feature to protect your grow tent area. The dehumidifier will not work when the temperature drops to 41 degrees F and below.

You use less than 1 KW over a 24 hour period.

What We Liked

  • Very energy efficient
  • Good for very small grow tents
  • Easy to use and empty

What We Didn't Like

  • Very low air output
  • Mold growth in water tank
  • Not long lasting
94/100
Our Ratings

 Eva-dry Edv-1100 Electric Petite Dehumidifier review

Its 22 watts of power makes this small dehumidifier for grow tent a good deal energy wise. You save money on your electric bills and still pull 16 ounces every day out of the air. That is a good deal when you have a small grow tent to use it in.

Once turned on you should not be disturbed by the motor. It is supposed to put out less than 60 decibels while working. Then the durable construction materials helps this device stay working for you for a long time.

Its plug and play design makes it simple to operate. After you find the right location, just push the switch and your grow tent will become drier in no time. In addition, this device is rated to cover 1100 cubic feet. That should be around 125 to 150 square feet of space.

The red light tells you when the water tank is full. The unit should shut off once that tank reaches its capacity with moisture.

What We Liked

  • Plug and play design
  • Uses only 22 watts of power
  • Efficient, quiet and easy to place
  • Covers 1100 cubic feet

What We Didn't Like

  • Does not draw out moisture fast enough
  • Short circuits after a little while
  • Fragile parts
  • Pour hole too small
92/100
Our Ratings

#4. TOSOT 3,000 Sq. Ft Energy Star Dehumidifier (Best Large Capacity Dehumidifier for Grow Room & Tent)

TOSOT 3,000 Sq Ft Energy Star Dehumidifier Review

When your grow room is large and you are mass producing cannabis plants for commercial use or sale, this is the dehumidifier for your needs. It removes up to 35 pints per day of excess moisture and keeps your grow room at a level where powdery mildew and mold can’t grow in.

The features on this device are the same for any dehumidifier that is large enough to handle 3000 square feet of space. There is the usual auto stop, timer, fan speed selector and even a digital display. You can keep an eye on your humidity levels with a glance.

Plus, the device will turn off once your selected humidity level has been reached. On top of that, the motor runs at about 50 decibels so your other activities should not be interrupted or disturbed by any loud noise.

Its energy efficiency should save you about 30% on energy use.

What We Liked

  • Energy efficient
  • Easy to use humidity control panel
  • Continuous drain feature, timer & more

What We Didn't Like

  • Very heavy to move
  • Produces lots of hot air
  • Wheels only work on hard surfaces
96 /100
Our Ratings

De'Longhi 45 Pint Dehumidifier Review

If you have an asthma or allergy sufferer in your home, you should consider this top dehumidifier. It is certified to help with those ailments. Then with the easy to use controls, your fingertips can easily set the parameters and keep your home nice and dry.

The digital display makes sure you can see your settings so no mistakes should be made. A change to those boundaries can be done at the push of a button. Then the little window at the bottom of this unit lets you see the water level at any time.

A 24 hour timer lets you control its operation even when you are not home. Plus, you get good coverage up to 500 square feet. An included 3’ drain hose provides you with continuous drain or you can use the large water tank to get the moisture out of your home.

What We Liked

  • Great features and easy to use
  • Asthma and allergy friendly
  • Included drain hose

What We Didn't Like

  • Only covers 500 feet
  • Motor is not quiet
94/100
Our Ratings

What We Found

One thing about portable dehumidifiers is that they work anywhere. The mini dehumidifiers may not work in the bathroom when the shower is running but they can do a great job in your grow room.

Also, you do not need a very large dehumidifier, capacity wise, or size wise, when you are using them in a grow tent. Small is good and sometimes better.

How to Calculate Dehumidifier Size for Grow Room

The equation goes something like this - gallons of water times number of plants times 8 (pint factor). In other words, if you use 1/2 gallon a day and have 10 plants you would be using 40 pints of water every day.

That means you would need a minimum of a 40 pint dehumidifier to service your grow room or tent. As long as your tent or room’s square footage does not exceed the maximum square footage rating for the dehumidifier.

Calculate according to your needs. Plant number and water amount to get the right dehumidifier for you.

What is the Best Dehumidifier for Microgreens

Best dehumidifier for microgreens grow tent

While in our round-up, we listed only 2 large sized dehumidifiers, any large size dehumidifier would be best for this project.

Just use the equation above to help you find one that is large enough for you and your growing concern.

Faq

What size dehumidifier for grow tent?

Do I need a dehumidifier for a 4x8 grow tent?

Will dehumidifier help cool grow tent?

The Winner is...

For this round-up, we selected the VIVOSUN Small Space Mini Dehumidifier for Grow Tent. Its numbers were just right for the needs of most grow tent users. The problem we faced is that with larger dehumidifiers were included so it was like comparing apples and oranges.

That is why we picked a second winner noted in our quick comparison chart. Those larger units work best in large grow rooms and make life a little easier for your growing business.

Final Words


When you are looking for the best dehumidifier for grow tent or grow room in your home, just remember a few simple things. If you use a lot of water and have a lot of plants, size of the tent or room does not matter that much. It is capacity that matters the most.

Above are some of the finest dehumidifiers that should meet your simple or sophisticated growing needs. You just have to figure out which one will work the best for you. They are all good models ready and willing to serve you and meet your needs.

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