Best Small Dehumidifier For Grow Tent: Top 3

Let’s say you have two or three plants in a small tent… and you live in a high humidity area in Florida. You might want to know about the best dehumidifier for 2×2 grow tent.

When these plants get to the flowering stage, you will increase the watering, and this will raise the humidity. High humidity is not good for plants at the flowering stage.

While you could try installing vents in the tent, that cannot beat the use of a dehumidifier to control humidity in a grow tent.

Just the same way we looked at the best humidifiers for a 2×2 grow tent, here, we bring you three of the best dehumidifiers for a small grow tent.

Keep reading!

1. VIVOSUN Small Space Mini Dehumidifier


This is a small capacity dehumidifier, just perfect for a small, 2 feet by 2 feet tent. After collecting about 1.3 liters of water, it is going to show a red light to alert you that the tank needs emptying. It is then going to shut down.

Per day, this dehumidifier can collect about 400ML of water. It is also an installation-free design since it comes ready to use. Just plug it into the socket and then switch it on. It will start collecting water immediately.

Because of its small size, it has a small footprint, so you can set it on one corner of the grow tent.

But remember to set it a bit high off the ground. Read my article on dehumidifier on the floor or up high, to understand more.

It has a space rating of 269 square feet. You can also use it in small rooms, bathrooms and other limited spaces. You could also use it in the closet to prevent high humidity damage for leather items.

You could also use this dehumidifier to control humidity in an incubator. There are so many uses you can put the unit to. Because of the small size, it fits into the most squeezed of spaces.

Other features you might love on this dehumidifier include its integrated handle for carrying it from place to place. The bucket is so simple to remove, empty and put it back.


  • It fits in many small spaces
  • You could use it in grow tents with up to five plants
  • The noise level is low
  • Internal filter net removes pollutants from the air


  • There has been some complaints about it failing to shut down when tank is full
  • Has an annoying green light on the power button that just won’t go off

2. Pohl Schmitt Electric Dehumidifier for Grow Tent


With a space rating of 225 square feet, the Pohl Schmitt Electric dehumidifier is a good option for people with a 2 by 2 grow tent.

This small portable dehumidifier comes with a capacity of 500ML. In such a small grow tent, this is a lot of water and the tank might even not fill up in one day.

The good thing is that as soon as the dehumidifier tank fills up, it is going to shut down automatically. You need not worry that the unit is going to start overflowing and make everything around the dehumidifier wet.

This dehumidifier is not loud, but if you have sensitive ears, you might find the steady hum somewhat irritating. Its noise level has been rated at 40dB, which is slightly higher than normal whisper noise level.

The use of this unit is reserved for the small grow tents alone. You could also use it to keep a good humidity level for the bedroom.

Also, if you are looking for the best small dehumidifier for a bathroom, this is it. With a power cord that is 4 feet long, you can place it in the most convenient place in small spaces.

This dehumidifier does not give an alert in the form of light or sound when the tank is full. It just shuts down.

If you have the problem of mold in your space, this portable dehumidifier will help to remove the moisture. Remember, when the humidity is 70 percent and higher, mold starts to grow.


  • Plug n play design, no assemblage is needed
  • It can work for more than 8 hours in a 2 by 2 tent
  • Useful as a desktop or closet dehumidifier
  • Automatic shut off when the tank is full
  • The price is fair enough


  • A sort of red light to alert you when unit is full would have been great
  • Doesn’t lower humidity in small rooms

3. Pro Breeze Portable Dehumidifier


The Pro Breeze Electric portable humidifier is perfect for a small grow tent because of its features, portability, small footprint and usability.

This is a small capacity dehumidifier since its tank can hold only 500ML of water.  This is enough for such a small growing tent.

Unless you have runaway humidity in the growing tent, it is not even going to fill up in one day.

When the tank is full, a red LED light is going to alert you. That is not all because it will also shut down automatically to prevent spilling water to the floor.

The dehumidifier consumes little electricity as its consumption has been rated at just 7 cents a day.

That is a real money saver right here. Imagine using such a small dehumidifier for a bedroom or grow tent, get the job done efficiently and save money at the same time. That is incredible!

Besides using this small unit in the grow tent, you could also use it as a desktop unit.

Remember not to keep it too close because a dehumidifier blows hot air, so it might make your workstation a tad too warm.

This dehumidifier is an award-winning unit. In 2022, it won the award for America’s Best Home and Garden Awards. This is quite the confidence booster.


  • Pro Breeze is a tested and proven brand with high quality products
  • It has a red light to alert you when it is full
  • Perfect for all small spaces including boats and RVs
  • Easy to remove the tank and empty it
  • Consumes minimal power but works like a horse


  • The lid is too tight and the water drain on the tank is not enough to allow you to clean the tank
  • Though reported in isolated cases, the noise is a bit loud

How big of a dehumidifier do I need for a grow tent?

There is no specific size of the dehumidifier that you could buy for a grow tent. It depends on the size of the tent itself.

For instance, a small dehumidifier such as the Pro Breeze is good for a small 2×2 grow tent. It can also work in a 3 by 3 tent, but that is just about all.

The size of the dehumidifier also depends on the number of plants you are growing in the tent.

More plants will require more watering, which can raise the humidity level too much. In such cases, you would need a bigger dehumidifier.

For a 2×2, 3×3, 4×4 and even 5×5 grow tent, just get a dehumidifier with a space rating of at least 200 square feet. That should be awesome for the tent.

Should you put a dehumidifier in a grow tent?

If you have many plants, it means you are watering them more often. They are also dispersing more moisture into the atmosphere. In this case, you need a dehumidifier in the grow tent.

It is not all the time that you will need a dehumidifier inside a grow tent. If you are not sure whether you need one, just use a hygrometer to measure humidity inside the tent.

If the humidity is higher than what is recommended for the type of plants you are growing, use a dehumidifier.

Remember, only use a dehumidifier or humidifier in a grow tent if necessary.

Where is the best place for a dehumidifier in a grow tent?

The best position for your dehumidifier is the area with the most airflow. This should ideally be in the center of the tent, with some space from the nearest plants.

The dehumidifier does not blow cold air, so placing it very close to the plants will envelope them in too warm air. Continuous exposure to such warm air may not be good for them.

If you place the dehumidifier close to the corner of the tent, make sure the grille/vents of the unit face the center of the room.

This ensures it is getting enough airflow to remove moisture and lower the humidity appropriately.

Also, remember to place the dehumidifier on an elevated position rather than on the floor of the tent.

Conclusion: Best dehumidifier for 2×2 grow tent

A 2×2 grow tent can hold 3 to 6 plants. When you water them, you will realize that the humidity goes up considerably. You need a dehumidifier to lower it.

The good thing is that you can also use the same dehumidifier in other rooms in the house. For instance, the Pro Breeze dehumidifier that you can buy on can work in a small bathroom, bedroom, and in the kitchen.