5 Best Dehumidifier for 4×4 Grow Tent in 2023

The optimum humidity level for plants in a grow tent changes in different stages. For example, the required humidity level in the seedling stage is different than in the flowering stage. This is why you need a dehumidifier in the grow tent to keep the humidity at the optimal level.

But what is the best dehumidifier for 4×4 grow tent? Although choosing the right dehumidifier can be tricky, we picked the top five dehumidifiers that might help you keep the moisture out to ensure the best growing condition inside the tent.

However, you need to consider multiple factors to choose the best one. Let’s explore their features in detail.

5 Best Dehumidifiers for 4×4 Grow Tent & Room

These dehumidifiers are compact, efficient, and portable. Check them out.

  1. Pro Breeze Dehumidifiers for Home
  2. SEAVON Dehumidifier for Home
  3. VIVOSUN Small Space Mini Dehumidifier for Grow Tent
  4. SEAVON Electric Dehumidifier for Home
  5. Eva-Dry E-333 Renewable Dehumidifier

1. Pro Breeze Dehumidifiers for Home

Key Features

  • Material: Plastic
  • Floor Area: 225 square feet
  • Water Tank Capacity: 16 ounces
  • Weight: 2.4 pounds
  • Dimensions: 6 x 6 x 8.5 inches

Compact dehumidifiers are suitable for 4×4 grow tents. The Pro Breeze is such a dehumidifier with a plastic build that draws about 9 ounces of water every day. This capacity is enough for rooms up to 225 square feet.

Thus, the water tank capacity is about 16 ounces, so you can leave the dehumidifier at work for about two days. When the water tank is full, an LED indicator will light up so that you can drain the tank.

Moreover, the device will shut off automatically to prevent water from damaging the dehumidifier. This allows you to leave the dehumidifier without any worries.

Similarly, the device draws moisture so silently that you would barely hear any noise. As it is very compact, you can easily carry the dehumidifier from one place to another. And it consumes a small amount of power to be energy efficient.

Accordingly, it works in a wide range of temperatures and keeps moisture away to ensure healthy growing conditions for your plants. With such features and portability in this price range, this is the best dehumidifier for 4×4 grow tent.


  • Lightweight build for better portability
  • Decent dehumidifying capacity
  • Suitable for standard rooms
  • Automatically shuts off once full
  • Ultra quiet performance


  • The water tank is very small
  • It doesn’t work in extremely low temperatures

2. SEAVON Dehumidifier for Home

Key Features

  • Material: Plastic
  • Floor Area: 260 square feet
  • Water Tank Capacity: 35 ounces
  • Weight: 6.3 pounds
  • Dimensions: 6.3 x 6.3 x 10 inches

The SEAVON dehumidifier is a bit larger and heavier than the previous one. But that gives you a better moisture-removing capacity and water tank capacity to deal with highly humid environments.

This device can draw up to 16 ounces of moisture from the room per day. And it takes more than two days for the water tank to fill up.

Besides, its water tank design is aesthetically pleasing. So, it will work as not only a water tank but also a beautiful showpiece for the room. This gets better when color-changing lights are added to the design. These lights can be kept static or changing, and the reservoir will look much better with the lights.

Though the dehumidifier is a bit heavy, it is still very portable. And it has two working modes to select the preferred working speed. If you choose the high-speed mode, it will draw moisture faster, but make a bit more noise. However, in the low-speed mode, the device is really quiet.

The dust-proof filter is removable, so you can easily clean that. Overall, this is a very good dehumidifier for 4×4 grow tents.


  • Minimalistic design to fit modern homes
  • Suitable for high-humidity environments
  • Two working modes
  • Noise-free operation with LED indicators
  • Takes up a small space


  • It draws about 42W of power every hour
  • Holding the device isn’t convenient

3. VIVOSUN Small Space Mini Dehumidifier for Grow Tent

Key Features

  • Material: Plastic
  • Floor Area: 269 square feet
  • Water Tank Capacity: 44 ounces
  • Weight: 4.3 pounds
  • Dimensions: 5.1 x 7.1 x 11.2 inches

It has a flat design compared to most dehumidifiers out there, and that helps you save a lot of space. You can easily fit this into a 4×4 grow tent, and it is even usable in rooms up to 269 square feet. The front of the device is totally flat, which gives it a sleek look.

You will get the power button on the right side, and the device will work continuously until the water tank is full. It has the capacity to remove up to 14 ounces of moisture per day. And the water tank holds up to 44 ounces of water.

So, you should not worry about draining the water tank in three days. Even if the water reaches the highest level, the device will shut off without manual intervention.

The LED indicator will light up to notify you to drain the tank. It also makes less noise, so the quiet environment in your grow tent won’t be hampered. But the power draw of this dehumidifier can be a bit higher than its competitors.


  • Sleek design with easy operation
  • Large water tank capacity
  • Continuous operation cycle with low noise
  • LED indicator and auto shut-off
  • Internal air filter


  • One working mode only
  • Power consumption is high

4. SEAVON Electric Dehumidifier for Home


Key Features

  • Material: Plastic
  • Floor Area: 156 square feet
  • Water Tank Capacity: 16 ounces
  • Weight: 2.4 pounds
  • Dimensions: 5.3 x 6.5 x 11.5 inches

It looks quite similar to the Pro Breeze dehumidifier you have seen earlier. And it has almost the same capacity but comes at a lower price. So, it can be a good choice for your grow tents.

This dehumidifier is suitable for rooms up to 156 square feet. As this has a smaller capacity, it will easily fit into 3×3 grow tents. The moisture-removing capacity of this device is 9 ounces per day. And the 16-ounce water tank takes almost two days to get filled.

Once the tank is filled, the LED indicator will show up and the device will automatically stop working. Remove the water tank, drain the water, and snap the tank back in place to make the device ready for working.

Likewise, you can easily carry the dehumidifier anywhere as it is very compact and lightweight. The device has no compressor, so it has extremely low noise. And the power draw is also minimal, so you can use the device at an almost not-noticeable cost.

Therefore, considering the coverage and performance, it is the best dehumidifier for 3×3 grow tent.


  • Space-saving design with high efficiency
  • Easy to operate
  • Suitable for small to medium rooms
  • Noiseless operation
  • Draws only 22W of power


  • Small water tank capacity
  • It is a bit inconvenient to carry around

5. Eva-Dry E-333 Renewable Dehumidifier


Key Features

  • Material: Plastic
  • Floor Area: 4-10 square feet
  • Moisture Removal Capacity: 4-6 ounces
  • Weight: 1.2 pounds
  • Dimensions: 4.75 x 6.25 x 1.25 inches

This is the smallest dehumidifier of all, and it will be suitable for extremely small grow tents. Instead of a built-in water tank, it uses renewable silica gel technology to absorb moisture. When the silica beads or orange, it means they are dry and ready to absorb moisture.

The device can suck up to 6 ounces of moisture before making the silica beads completely wet. Once the silica beads turn green, you can plug the device in to renew it. And it will then be ready to absorb moisture again.

Such a compact design with no hassle of cords is really appreciable. And it comes at a highly affordable price. As the device is compact, you can easily carry it from one place to another without worrying about weight.

Moreover, the device is really quiet and works for a long time before needing a recharge. It will take up to 30 days to make the silica beads wet, depending on the humidity level in your environment.

As a result, you don’t need to take the hassle of draining water tanks with the best dehumidifier for 2×2 grow tent.


  • Simple, renewable operation
  • Cordless design
  • Micro-absorbing silica gel technology
  • Highly compact design for tight spaces
  • Lasts longer than other dehumidifiers


  • The moisture removal rate is low
  • Recharging takes a long time

Buying Guide of Best Dehumidifier for Grow Tent

Dehumidifiers come in a variety of sizes and capacities. You need to consider the following factors to choose the right one for your grow tent.

Floor Area Coverage

Grow tent dehumidifiers usually have a small area coverage, mostly limited to 200-250 square feet. Knowing the exact coverage area is crucial before buying the dehumidifier. It will ensure the device can efficiently remove moisture from the area.

A dehumidifier with a floor area coverage of 150-200 square feet will be fine for 4×4 grow tents. If you have a smaller grow tent, something like a 3×3 or 2×2, you may go for smaller dehumidifiers.

Moisture Removal Rate

It refers to the total amount of moisture the device removes from the area in a day. Most dehumidifiers for grow tents can remove 5-15 ounces of moisture every day, depending on the temperature and humidity conditions.

If the grow tent is bigger, you need to go with high-capacity humidifiers so that excess moisture can’t affect the growth of your plants.

Water Tank Capacity

The moisture drawn out from the room gets collected in a water tank until the tank is full. So, the water tank must have the capacity to hold enough water before stopping the device from working. This way, you need to drain the tank less frequently.

In most cases, water tanks have a capacity of two or three times the moisture removal rate. So, they can run for two or three days at a stretch. The bigger the tank, the less will be the hassle. But much bigger tanks may make the device heavy.


Using a dehumidifier should be simple so that you can plug the device in and stop worrying. It should have indicators to let you know when the water tank is full and needs draining.

Most dehumidifiers have an auto shut-off feature, which allows the device to stop working automatically when the water tank is full.

It is better to have different working modes so that you can set the preferred mode depending on the humidity level. Thus, the working temperature range of the device should be broad.


Compact dehumidifiers are great for grow tents. They should be lightweight and portable so that you can move them easily. Most dehumidifiers come with a built-in handle for easy carrying.


The operating noise of a dehumidifier is often annoying. You should look for quiet dehumidifiers that run silently without a compressor. In that sense, small dehumidifiers for grow tents should never make a noise higher than 30-35 dB to be convenient.

Easy Cleaning

Accumulated dust particles inside an air filter can have adverse effects on plants. You should be able to remove the air filter to clean it regularly. In that case, you don’t need to buy a new air filter whenever it gets dirty.


Check these answers to commonly asked questions about dehumidifiers.

Where to place a dehumidifier in your grow area?

One dehumidifier with enough capacity may be suitable for a 4×4 grow tent. In that case, you need to place it in the middle of the tent so that the device can cover the surroundings adequately.

Why do you need a dehumidifier in a grow tent?

Ensuring air circulation inside the grow tent is essential. And the humidity should also be at the optimal level for desired growth of the plants.

What should my humidity be during flowering?

It depends on the type of plant you have inside the grow tent. The flowering stage requires a lower humidity level than the seedling stage. So, you can keep it at 30-40% to ensure optimal conditions for flowering.

What size of dehumidifier do I need for my grow tent?

The right size of the dehumidifier may vary based on the size of your grow tent. If you have a 4×4 grow tent, dehumidifiers with a floor area coverage of 200-250 square feet will be fine.

Why run a grow room dehumidifier?

A grow room dehumidifier removes moisture from the environment to keep humidity at a certain level. It also makes sure clean air is circulated in the grow room.

What is the best setting for my dehumidifier?

Check what humidity level is necessary for your plants in different stages. Keeping the humidity level between 30% and 70% is suitable for most plants.


Grow tent dehumidifiers keep the air fresh and moisture out to create the perfect growing condition for your indoor plants. They should have enough capacity to remove moisture, depending on the size of your grow tent.

Besides, the dehumidifier that gives you the least hassle during operation is the right dehumidifier for a 4×4 grow tent. The devices we picked today are very efficient in removing moisture and also work quietly.

You just need to drain the water tank only once in two or three days. With all the features, the Pro Breeze dehumidifier is the best dehumidifier for 4×4 grow tent.

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