Hydroponic Dehumidifier Systems The Big 10

Hydroponic Dehumidifier Systems The Big 10

Hydroponic Dehumidifier. If you search for “dehumidifiers for hydroponic systems,” you’ll undoubtedly be inundated with a variety of options. Not all dehumidifiers are created equal, which is the issue. False advertising and defective or ineffective products are now a common occurrence when purchasing products, particularly online.

It’s a risky business, so we at Climatebiz want to give you—our readers—the best opportunity to buy a dehumidifier that will be worth your money.

So that you don’t have to, we’ve combed through the voluminous selection of dehumidifiers available and hand-picked the top 10 (at various price points).

Hydroponic Dehumidifier

Hydroponic Dehumidifier


Experts from Climatebiz meticulously plan, investigate, fact-check, and edit all content.

Affiliate Disclaimer

Climatebiz is financed by its readers. When you make a purchase using a link from our website, we might receive an affiliate commission.

What Is A Dehumidifier?

A dehumidifier is a mechanical or electrical device that removes moisture from the air and stores it as water. These devices typically work in small spaces like basements, bedrooms, bathrooms, grow tents, etc.

Why Are Dehumidifiers Important For Hydroponic Systems?

You must have a fundamental knowledge of what humidity is in order to recognize the necessity for a dehumidifier.

What Is Humidity?

Simply put, humidity is a measurement of the amount of water vapor in the atmosphere. There will be more water vapor present and the humidity level will be higher as more water evaporation occurs in a particular area.

How Does That Apply To Dehumidifiers For Hydroponic Systems?

Given the foregoing, it follows that hydroponic systems, especially those found in enclosed spaces, are more likely to experience higher humidity levels due to the increased presence of water. Consider for a moment the volume of water that a Deep Water Culture, Aquaponic, or NFT hydroponic system contains.

It is inevitable that plants fed continuously with an aqueous nutrient solution will release water vapor, which is more than enough to warrant the use of a dehumidifier.

What Is The Result Of An Imbalance In Humidity Levels?

In a nutshell, too much humidity in a greenhouse—or any indoor space, for that matter—will result in serious problems, according to Greenhouse Product News. Dripping condensation from ceilings can spread disease, attract unwanted animals, and encourage the growth of algae.

Other effects include the following:

  • Your grow space becomes the perfect environment for bacteria and molds.
  • Flowering plants can begin to suffer from bud rot or botrytis.
  • Transpiration or exchanging of air between your plants will be affected.
  • Your plants will close their stomata, this will clog them up.
  • Nutrient uptake will decline.
  • Your plant yield will decrease.

How Do I Know If I Need A Dehumidifier For My Hydroponic System?

Alert signals, people. Always be alert for cautionary signals.

Warnings signs that indicate the need for a dehumidifier in your hydroponic system grow space:

  • Condensation droplets on the ceiling or walls of your grow space
  • Water puddles on your grow space floor (look for signs of algae growth)
  • Botrytis
  • Leaves becoming excessively damp
  • Plants will begin to wilt
  • Powdery mildew

Top 10 Indoor Dehumidifiers For Hydroponic Systems

hOmeLabs Dehumidifier – Suitable For Grow Rooms

Key Specs:

Area coverage4,500 ft2
Absorption capacity50 pints (per day)
Water tank size12.8 pints
Item weight40 lbs
Item dimensions(LxWxH): 15.4 x 11 x 24.3 inches

Product Overview

First impressions are important, so let’s make a good one, shall we?

The fantastic dehumidifiers from hOmeLabs are ideal for medium- to extra-large grow rooms.

This specific model, which covers 4500 square feet, is ideal for those of you looking to cover very large grow spaces.

Depending on the size of your room, it can remove up to 50 pints (70 pint 2012 DOE Standard) of air pollution per day. It has a 1.6 gallon water tank. Several user-friendly modes, including auto shut-off, defrost, restart, and turbo mode, are also included with the device.

This dehumidifier is nice and portable despite its size and weight. This is made possible by its integrated wheels and handles.

Last but not least, those of you who care about the environment will be happy to learn that the 50-pint model has been added to the list of 2020’s most energy-efficient products by Energy Star!


  • 0.8-gallon water tank capacity, and removes up to 22 pints of moisture from the air per day.
  • Covers a large area – 1500 ft2
  • Touch panel control with restart, auto shut off, and turbo mode.
  • Energy Star certified


  • You cannot swap out the plastic base.

Inofia 30 Pint Dehumidifier – Suitable For Grow Rooms

Key Specs:

Area of efficiency1,056 ft2
Absorption capacity30 pints (per day)
Water tank size4 pints
Item weight24.9 lbs
Item dimensions(LxWxH): 12.2 x 8.2 x 17.3 inches

Product Overview

Undoubtedly one of the top dehumidifiers for hydroponic systems is this Inofia product.

It is the ideal choice for those of you looking to regulate humidity levels in a sizable grow room because of its absorption capacity of 30 pints of moisture per day in areas up to 1,056 ft2.

This little dehumidifier’s auto shut-off feature is one of its best qualities. It will sound an audible alert when its 4-Pint (0.5 Gal.) water reservoir is full to let you know that it needs to be emptied. Alternately, you can use the 6.56-foot drain hose that comes with it to let gravity do the draining for you.


  • Built-in humidistat
  • Quiet (sleep mode)
  • Automatic/Manual drainage
  • User-friendly
  • Auto error-detection


  • Water tank could be bigger

Pro Breeze Electric Mini Dehumidifier – Suitable For Grow Tents

Key Specs:

Area of efficiency250 ft2
Absorption capacity1.12 pints (per day)
Water tank size3.2 pints
Item weight5.16  lbs
Item dimensions(LxWxH): 6.6 x 9 x 12.69 inches

Product Overview

Looking for a smaller dehumidifier that won’t have a significant impact on your utility bill? Thermoelectric (Peltier) cooling, which is energy-efficient, is used in this electric mini dehumidifier by Pro Breeze.

It’s not too noisy either. You will be able to operate your grow area day and night without it significantly disturbing you if it is located close to where you live.

You won’t have much trouble moving it around your grow area because it is lightweight and portable.

Additionally, this little guy packs a powerful punch, as evidenced by a very well-liked Amazon comment that reads, “I have this guy in a room almost double the recommended size but it still makes an impact to [sic] the humidity levels.”


  • Budget-friendly
  • Compact & portable
  • Quiet
  • Auto shut-off


  • Doesn’t operate well below 41F temperature.

SEAVON Dehumidifier – Suitable For Grow Tents

Key Specs:

Area of efficiency240 ft2
Absorption capacity0.75 pints (per day)
Water tank size1.68 pints
Item weight2.55 lbs
Item dimensions(LxWxH): 6.2 x 4.9 x 10.1 inches

Product Overview

Hydroponic dehumidifiers don’t have to be expensive to work well. That is demonstrated by this SEAVON portable dehumidifier. For those of you looking for a more cost-effective option, it’s without a doubt one of the best, most affordable dehumidifiers on the market.

It is appropriate for 5×5 grow tent spaces because of its size and effectiveness. Additionally, because it uses ultra-quiet Peltier technology, which has a noise level below 35dB, you can put your tents close to your living area.

You won’t need to worry about your utility bill going up because this little guy only uses 0.54kW of electricity after running for 24 hours.

Last but not least, SEAVON dehumidifiers include a 1-year warranty as well as a 60-day free exchange and refund service.


  • Affordable
  • Compact and lightweight
  • Auto-shutdown when the water tank is full


  • Doesn’t work when the outer temperature is below 41oF
  • Can’t be used in areas with high humidity

Colaze Mini Dehumidifier – Suitable For Grow Tents/Small Grow Rooms

Key Specs:

Area of efficiency480 ft2
Absorption capacity1.69 pints (per day)
Water tank size3.8 pints
Item weight5.08 lbs
Item dimensions(LxWxH): 14.21 x 7.87 x 7.8 inches

Product Overview

This Colaze dehumidifier is small and portable, making it ideal for hydroponic systems in grow tents or small spaces.

The dehumidifier has an automatic shut-off feature; when the water level reaches its peak, the RGB light turns red and the dehumidifier turns off. Additionally, the dehumidifier has overcurrent protection, which prevents damage by shutting off when the current exceeds the 4A built-in current.

This gadget also functions as a night light for those of you seeking that extra something. It automatically cycles through 7 different lights, which we know your little green friends will love!


  • Auto-shutoff
  • Doubles up as night light
  • Overcurrent protection


  • May not be powerful enough for some

Ivation Mid-Size Dehumidifier – Suitable For Grow Tents

Key Specs:

Area of efficiency168.9 ft2
Absorption capacity1.25 pints (per day)
Water tank size3.31 pints
Item weight4.4 lbs
Item dimensions(LxWxH): 8.6 x 6.3 x 11.8 inches

Product Overview

The use of Peltier technology in this dehumidifier is the secret to its superior performance. Mid-sized dehumidifier from Ivation.

The Peltier system operates with essentially no moving parts. As a result, Ivation has created a dehumidifier that is compact, lightweight, and energy efficient but still powerful and effective.

Additionally, this technology guarantees that your device will operate quietly, which makes it the ideal dehumidifier for hydroponic systems in your home.


  • Silent operation through Peltier Technology.
  • Low energy consumption
  • Quiet


  • Could do with a timer function

Vremi Dehumidifier – Suitable For Grow Rooms

Key Specs:

Area of efficiency1,500 ft2
Absorption capacity22 pints (per day)
Water tank size6.4 pints
Item weight33.1 lbs
Item dimensions(LxWxH): 16.1 x 10.4 x 19.9 inches

Product Overview

With its sleek, minimalist design, built-in wheels, and handles, this dehumidifier from Vremi is simple to move around your grow area.

This dehumidifier from Vremi is ideal for large grow rooms due to its absorption capacity of 22 pints per day over a maximum area of 1,500 ft2.

It has a sleek, minimalist design and integrated wheels and handles so you can move it around your grow area with ease.

The filter only needs to be cleaned once a month, which will please those of you who dislike maintenance.

Last but not least, this dehumidifier has a drain hose outlet (hot note included).


  • Perfect for large spaces
  • Energy Star certified
  • Drain hose outlet
  • Auto shut-off and defrost

Waykar Dehumidifier – Suitable For Grow Rooms

Key Specs:

Area of efficiency2000 ft2
Absorption capacity34 pints (per day)
Water tank size5.28 pints
Item weight28.8 lbs
Item dimensions(LxWxH): 23.3 x 14.2 x 11.5 inches

Product Overview

This big boy from Waykar can remove 34 pints of moisture per day and can cover up to 2000 square feet.

Although it is somewhat more expensive than the majority of our other entries, its features make up for the premium price:

  • Intelligent control -The device has the ability to run in accordance with the humidity level that you desire. You can set and forget your humidity level. It will sense your rooms humidity and control dehumidification to maintain your pre-set levels.
  • Auto drain- The unit comes with a 6.56 feet drain hose that you can attach to the drainpipe hole to continually drain dehumidified water.

All of Waykar’s dehumidifiers have 30-day money-back guarantees in terms of support. Additionally, they offer a 1-year warranty that can be extended to a 2-year period.


  • Intelligent control
  • Auto drain
  • Solid warranty

hysure Dehumidifier – Suitable For Small Grow Tents

Key Specs:

Area of efficiency215 ft2
Absorption capacity0.63 pints (per day)
Water tank size1.47 pints
Item weight2.68 lbs
Item dimensions(LxWxH): 6.42 x 4.21 x 10.51 inches

Product Overview

If you’re looking for a discrete dehumidifier that won’t break the bank, hysure’s ultra-quiet (33dB) and energy-saving dehumidifier is ideal.

It is a chemical-free dehumidifier for hydroponic systems that is safe for the environment.

Finally, a 24-month warranty, a 30-day money-back guarantee, and knowledgeable customer support are included with this dehumidifier.


  • Compact and portable
  • Quiet
  • Energy saving
  • Money-back guarantee and warranty


  • May be too small for some

Eva-dry E-500 Renewable Mini Dehumidifier – Suitable For Grow Tent

Key Specs:

Area coverageUp to 500 ft2
Absorption capacity0.5 pints
Water tank capacityN/A
Item weight1.8 lbs
Item dimensions(LxWxH): 5.5 x 2.5 x 5.5 inches

Product Overview

At Climatebiz, we place a high value on items that are both effective and environmentally friendly. This makes the Eva- Dry mini dehumidifier from our list a necessity.

This small, portable device quickly and effectively absorbs up to 6 to 8 oz of moisture from the air without any bothersome leaks or spills thanks to non-toxic crystallized silica gel technology.

It is also very energy-efficient because it doesn’t need cords, batteries, or a constant supply of electricity to function.

Instead, you should dry out the silica gels in any power strip until the beads change color once more, from orange (dry) to green (wet).

WARNING: When plugged in, these devices may begin to heat up. Using an extension cord and placing them on a concrete floor or another non-combustible surface is the safest way to recharge them.


  • Very cost-effective
  • 10-year lifespan
  • Portable
  • No batteries or cords


  • Only suitable for very small spaces ( 2×2 grow tents)
  • Can overheat when plugged in.

These reasonably priced dehumidifiers make wonderful gifts. If these little guys aren’t your thing, though, and you’re in need of gift suggestions, take a look at our list of 101 eco-friendly presents.

Final Thoughts

We are more than confident that our top 10 list of dehumidifiers for hydroponic systems has something for everyone, whether you’re looking for a small, portable dehumidifier (Ivation) or a true powerhouse like the hOmeLabs dehumidifier.

If you’ve used any of the dehumidifiers mentioned above, or any others for that matter, feel free to share your insights and suggestions with us in the section below!

FAQ Hydroponic Dehumidifier

Do I need a dehumidifier for hydroponics?

If your Indoor or Garden Grow Room has too high a relative humidity, use a dehumidifier to control humidity or to maintain your relative humidity level. For the vegetative phase, keep the relative humidity between 50% and 60%.

How to control humidity in hydroponics?

A properly adjusted ventilation system helps control temperature & humidity levels in the growing area by removing hot and humid air, and replacing it with fresh air. A fan inside the growing area prevents hot or humid patches. Help Prevent Fungus & Pests! Many fungi and pests such as stagnant air, high humidity and heat. March 14, 2017

Do I need a dehumidifier in my grow room?

A number of factors play a role in controlling humidity: room temperature, number of plants, how much you water. But, eventually, nearly every indoor grower will need a dehumidifier — or a dozen.

Is humidity important for hydroponics?

Humidity is one of the most important metrics in hydroponic cultivation. For a successful harvest, it is important to understand what moisture really is, how we measure it, why we need to control it and where we want it.

Where is the best place to put a dehumidifier in a grow room?

If only one is needed, located in the center of the room, above or next to a lamp is generally the best placement. There are variables that affect placement, such as room height and airflow. For example, when the room has low ceilings, you may not be able to hang the dehumidifier.

How to make a dehumidifier at home?

Here’s how to make it: Prepare a small bowl that fits the area where you want to place it. Fill a bowl with baking soda. Place the bowl in the area where you want the moisture to dry. The baking soda will harden as it absorbs the moisture, and at that point, you’ll need to replace it with fresh baking soda.

How to get rid of high humidity?

Use a dehumidifier and air conditioner, especially in hot and humid climates, to reduce humidity in the air, but make sure the equipment itself is not a source of biological pollutants. Raise the temperature of the cold surface where the water vapor condenses. Use insulation or storm windows.

What is the temperature of hydroponic water?

Consequently, determining the ideal water temperature for hydroponics depends on reaching a compromise between plant oxygen use and metabolism. However, in most cases, commercially cultivated plants will thrive in temperatures ranging from 59-86°F.

Does the fan lower the humidity in the grow tent?

A good air conditioner will ensure that cold air will often replace hot air. It can also be paired with a fan to help keep the environment cool in your grow tent by reducing moisture. Thus, you should choose an air conditioner sized enough for your grow tent that can draw enough water from the air.

Is it okay to water plants with a dehumidifier?

Water Your Plants Put the water from the dehumidifier into a watering can and use it to water your houseplants or outdoor garden. Since dehumidifiers usually produce the most water during the growing season, this is an ideal way to recycle them.

How to lower humidity without a dehumidifier?

5 ways to reduce humidity levels in the room without a dehumidifier Increase the ventilation of your home. Turn on the air conditioner. Dry your clothes in the dryer or outside. Keep the surface dry. Use a dryer.

How big a dehumidifier do you need for the grow room?

First, you need to estimate the amount of water you give your plants each day. For example, if you have 30 plants in your garden and need a gallon of water every day — you need a dehumidifier that can remove 30×1=30 gallons of water from your room.

Is 40 humidity too low for plants?

On average, most houseplants thrive in humidity levels between 40-60%.

Is 100% humidity good for plants?

The ideal humidity range for most mature plants is 50% to 60%. Some tropical plants, such as pineapples, are accustomed to humidity levels of up to 90%. Many succulents, such as cacti, will do well with humidity levels as low as 10%. As a general rule, plants with thicker leaves can tolerate lower humidity levels.

Do plants like humidity at night?

Plants prefer higher humidity at night. Relative humidity of less than 75% at night is undesirable. During long periods of dark weather, plants will shed their roots because, like muscles, if you don’t use them, you will lose them.