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Best Grow Room Humidifiers Reviewed and Buyer’s Guide – Our Top Picks

Every indoor gardener needs a humidifier for increasing the humidity of the grow room to the proper level. There are many humidifiers available on the market. But when you select a humidifier for the grow room or grow tent, you must be careful.

The plants are pretty sensitive. A slight change in the humidity level of the grow room can seriously affect the plant’s growth. It can also damage the plant.

It is not that easy work to find out the perfect grow room humidifier. So, we are going to reveal the best grow room humidifier list with an entire guideline. Here, we have enlisted the top six grow room humidifiers.

Top Rated 5+ Best Grow Room Humidifiers

TaoTronics Cool Mist Ultrasonic Humidifier
Essick Air Evaporative Humidifier
Digital Pedestal-Style Evaporative Humidifier
Venta LW25 Airwasher 2-in-1 Humidifier
Ultrasonic Cool Mist Humidifier

TaoTronics Cool Mist Humidifier, LED Display, 4L Ultrasonic Humidifiers for Home

TaoTronics Cool Mist Humidifier, LED Display, 4L Ultrasonic Humidifiers for Home

What We Liked Most About This Product

Taotronics is a renowned brand for humidifiers and accessories. The best thing about the product is it is an ultrasonic humidifier. Thus, the humidifier provides not only smooth humidification but also adjustable humidity facilities.

Product Overview

The TaoTronics Grow room humidifier comes with an ultra-air diffusion system. This humidifier creates less noise than others as it comes with less than 38 dB of sounds.

If you use this humidifier for the bedroom, it will not disrupt your sleep by creating harsh noise.

The fifteen hours working time is going to provide you cool mist that can be adjustable at your required level. The humidifier has the 4L capacity of the water. Thus, it is sufficient for producing mist for day long. This humidification produces purified air for supplying you the fresh air with a comfortable air environment.

Another exciting feature about this product is it comes with a beautiful LED display. The display is very clear and intuitive. You can set a timer on your room humidifier. Thus, it will help you to set the goal of how long it should run.

Furthermore, you can set the sleep mode when you think that you don’t need the air to be humidified.

The ultrasonic humidifier comes with a rotating nozzle. Thus, the nozzle allows uniform distribution of the mist and fog as it can rotate 360 degrees.

To breathe in fresh and comfortable air, this grows room humidifier is the right choice. A 431-538 square feet room can be easily covered with this room humidifier.

Again, the humidifier provides comparatively safe and hygienic air. It includes a high-quality cartridge that filters the water thoroughly. The humidifier also prevents microorganisms from growing. It supplies non-allergic and pure air to its user. Definitely an excellent humidifier for a small grow room.


  • Ultrasonic humidifier provides minimum sound.
  • It has a microporous cartridge for improved purification of the water.
  • Includes a timer for setting time.
  • It provides a 360-degree nozzle for the proper distribution of the mist.
  • Perfect humidifier for people and grow room.
  • It comes with an adjustable humidification level.


  • It can be difficult to clean.

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Essick Air AIRCARE MA1201 Whole-House Console-Style Evaporative Humidifier, WhiteEssick Air AIRCARE MA1201 Whole House Console Style Evaporative Humidifier, White

What We Liked Most About This Product

The Essick Air is an evaporative humidifier from the renowned AIRCARE Brand. The humidifier comes with single bottle design. For the dry indoor air, an evaporative humidifier can supply the required level of humidity.

The humidifier comes with an excellent runtime. Long-time humidification provides a comfortable environment in the room.

Product Overview

If you are looking for a humidifier that will cover your 3500-3600 square ft flat, this Essick evaporative humidifier will be the best pick. This model will provide humidification of over a 3600 square ft area quickly. It generates cool mist and produces vapor to the entire house uniformly.

If you are planning for planting indoors, you can use this humidifier to maintain the humidity level of the room or tent.

Another essential feature of this humidifier is that it includes a digital humidistat. It automatically controls the humidity level according to the dryness of the room’s air. So, you don’t need to worry about it, even though you are not staying in the sealed grow room.

The machine will maintain accuracy to detect the level of dryness. Then it will raise the humidity level to compensate it. Thus, it will help the proper growth of the plant in a tent or grow room.

No more allergies, flues, or other breathing issues. It prevents sinuses, migraine, and other irritations that is occurred due to dryness or due to excessive humidity.

It has 3.6 gallons of water capacity. Thus, it creates sufficient vapor for large house humidification. The humidifier can protect the wooden furniture from any damage.

The humidifier comes with an auto shut off the system. Once your required humidity level reached, it will automatically shut off. If the humidifier intake is empty, it will shut off automatically too. Again, this digital humidifier is very easy to clean—no complex parts like pulley and wheels.

Besides, it includes a filter indicator, caster wheels, and a digital display. The humidifier saves energy by reducing the usage of comforting power-consuming devices.


  • It can shut off automatically.
  • It provides proper humidification over an entire house.
  • The most extended runtime provides a comfortable environment.
  • It prevents flue and breathing diseases.
  • Automatically maintains the required humidity level.
  • It comes with a caster for excellent mobility.
  • It has a digital display for constant monitoring.


  • It is quite noisy.

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AIRCARE EP9 800 Digital Whole-House Pedestal-Style Evaporative Humidifier, Espresso

AIRCARE EP9 800 Digital Whole House Pedestal Style Evaporative Humidifier, Espresso

What We Liked Most About This Product

Another great product from AIRCARE. This model comes with its unique pedestal design, which goes with any décor. It also features a smooth fill tank design. This allows the user to fill the humidifier easily.

Product Overview

The humidifier includes a digital humidistat. It controls the humidification automatically. It calculates the dryness of the room air accurately. Then, it raises the humidity level to the desired level so that all the uneasiness and flue diseases vanish.

The humidifier includes a digital display. So, you can easily read out the fan speed and the humidity level to the digital display.

Again, the humidifier includes nine fans for providing the best performance of humidification. These fans keep the room humidifier more active and functional for a long time.

It will maintain the necessary humidity in your room’s air. Even for a grow room or tent, it will cover the required moisture to boost the growth of the plant.

The espresso pedestal style humidifier can easily cover a large house of about 2400 square feet. It can even humidify your entire home. The breathing and air environment of the indoor should be pure and safe. The humidifier comes with front fill design. So, you can pour in the humidifier tank from the front section.

The humidifier can run up to sixty hours effectively. This is the longest run time by now. It includes a capacity of 3.5 gallons of water.

Besides, it includes an auto shut off valve like the previous AIRCARE product. It can provide the desired humidity continuously for 2.5 days.

If the tank is empty or it reaches the required level of humidification, it will shut off automatically.


  • It comes with a pedestal-design to fit any room decor.
  • The humidifier includes a caster for easy maneuverability.
  • It can produce cool mist for a long time.
  • Longest run time ever for a medium-large house.
  • It comes with a digital display.
  • The digital humidistat can control the humidity automatically.
  • Great for your apartment and grow room.


  • In the upper level, the humidifier makes some noise.

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Venta LW25 Airwasher 2-in-1 Humidifier and Air Purifier in BlackVenta LW25 Airwasher 2 in 1 Humidifier and Air Purifier in Black

What We Liked Most About This Product

Our next grow room humidifier is from the brand Venta. The Venta LW25 Airwasher doesn’t require any filter to filtrate and purify the air. It won’t create white dust.

So, a healthy environment remains at your home. If you are planning on using this humidifier for an indoor grow room, you can surely do that.

Product Overview

It will not allow the entire apartment or house to cover but surely will do for a large room. This humidifier provides humidification for a room of 400 square feet.

If you are owning a farm or tent where you are planning for growing plants and planting the seeds and flowers, you can use this humidifier to enrich the indoor air with moisture.

Though the room humidifier humidifies air for a comfortable and non-allergic environment, a grow room humidifier will take care of your plants for indoor gardening.

The humidifier includes cold evaporation technology. Thus, it produces humidification without any filter. There is no risk of releasing bacteria into the environment. Therefore, it will maintain a certain level of humidification needed for the grow room.

This Airwasher comes with 2 gallons of capacity. It is pretty sufficient to humidify the environment of a small to medium house. It removes the dust and dirt from the air, even of .3 microns particle.

This cold water humidifier can provide the humidification of 40-55%. This is the optimal range of humidification, which prevents bacteria and allergens that affect the skin.

The product includes an auto shut-off valve. It will automatically control the humidification when the required moisture gained to the air.

The humidifier could be the safest humidifier for a tent, established for purifying and humidifying the air.


  • It provides “white dust” free air.
  • Purified and fresh air for a healthy environment.
  • It is easy to clean.
  • It comes with medium space.
  • No filter required to purify the air.
  • It comes with the automatic shut off valve.
  • Includes a refill indicator.


  • Not a quiet humidifier for bedroom use.

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Pure Guardian 70-Hour Ultrasonic Cool Mist Humidifier

Pure Guardian 70 Hour Ultrasonic Cool Mist Humidifier

What We Liked Most About This Product

The Pure Guardian Humidifier is a personal humidifier. This single portable humidifier can be conveniently used for a tent and a room. This single jar shaped humidifier produces up to 3 gallons of vapor.

It releases moisture to the room air to keep its relative humidity on the desired level. Besides, this small humidifier can be set on your table easily.

Product Overview

The Pure Guardian Ultrasonic cool mist humidifier is a great humidifier for your room. This adds moisture to the dry air for a comfortable environment. It features the filter-free technology.

Being an ultrasonic humidifier, it produces less noise. The tank has 1 gallon of capacity. But, it delivers 3 gallons of vapor. It can easily cover a medium-sized room. The humidifier has a run-time of about 70 hours. It can also be filled very quickly.

This humidifier helps you in creating a noise-free environment while sleeping. Besides,t includes a five feet long cord. It can be set anywhere in your room.

The tank comes with silver clean protection. This technology prevents growing mold and mildew. Again, the humidifier appears with the tabletop design. Thus, it is comfortable to fill and perfectly fits a smaller place.

The humidifier emits cool mist to sooth the air and creates a relaxing environment in the room. This is hygienic and prevents the growth of the bacteria.

It includes a water level indicator. When the water level is low, the indicator light allows you to know about it. When the tank is empty, it automatically shuts off. Again, the humidifier distributes mist multi-directionally for uniform distribution.

The humidifier comes with a night light and three variable speeds. You can adjust the speed of the humidifier to your preference. For a grow room, this Pure Guardian will be one of the best humidifiers within this price.


  • It comes with the tabletop design for easy filling of the tank.
  • Includes silver clean protection from in the tank.
  • Prevents mold and allergen.
  • An ultrasonic humidifier creates less noise.
  • Produces fine mist to moisture the dry air.


  • It produces white dust.

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PurSteam Ultrasonic Cool Mist Humidifier – Superior Humidifying Unit with Whisper

PurSteam Ultrasonic Cool Mist Humidifier – Superior Humidifying Unit with Whisper

What We Liked Most About This Product

The last humidifier for grow room on our list is the Pursteam Ultrasonic Cool Mist. The humidifier comes with a unique design, which catches the user’s eye. It is also very lightweight.

Product Overview

The humidifier includes the variable knob, which controls the humidity level. It’s an on/off switch. This functional humidifier will suit any home décor.

You can place this humidifier virtually anywhere. The humidifier comes with a night light, which makes the operation easy even at night.

This affordable humidifier can provide moisture for 17 hours continuously. This is an ultrasonic humidifier that produces vapor quietly.

The humidifier includes a water tank of 2.2 liters. You can use this humidifier for grow tent to boost the growth of the plants.

It comes with a useful low water level indicator. When the water levels of the tank are below the standard line, this indicator light will show up. One fulfilled tank produces mist for 17 hours in a constant way. It also comes with the auto shut off valve. When the desired humidity level reached, it will shut off automatically.


  • It comes with a stylish design.
  • Includes variable knob for controlling the humidity level.
  • It provides a constant 17 hours of humidification.
  • Comes with a night light.
  • Includes an auto shut off valve suitable for the medium-large room.


  • Not suitable for humidifying large rooms or the entire house.

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Grow room humidifier buying guide

When you are choosing a humidifier for a grow room, you must consider several factors. It is because plants are more sensitive than humans. A little change in relative humidity in the grow room environment can cause damage to the plants. So, before your final purchase, check the following factors:

  1. The capacity of the humidifier:

Firstly you should check the capacity of the humidifier tank. The manufacturer also provides information about the area it would cover. You should check that. Generally, a tank of 3.5 gallons capacity covers a large house easily.

  1. Runtime:


Check the run time of the humidifier. In our above-listed product, you’ll find a humidifier that runs for 70 hours. Choose according to your needs. If you own a large grow room, choose a heavy-duty humidifier.

  1. Ultrasonic or not:

The ultrasonic humidifier produces a fine mist to add moisture to the air of your sealed grow room. Even it is less noisy, and some brands come with quiet operation. They produce pure and dust-free mist to humidify the dry air.

  1. Automatically controlled:

Some humidifiers come with an automatically controlled humidification system. It controls the relative humidity automatically whenever it reaches the desired level. It will increase the humidity if the air is dehydrated. Again, it will reduce the humidity to over humidification of the air.

  1. Price Vs. quality:

You may get the right quality product at an average price. Sometimes, an inferior quality product at a higher price. It depends. So, you should check whether you are getting the expected quality humidifier according to its price. Though high-quality products are pricey, they are committed to the customer.

The FAQ (Frequently Asked Question)

Q: Does the humidifier suitable for winter?

A: Of course, it is. The function of the humidifier is to add moisture to the dry air. It will work in the winter.hydroponic Tents FAQ

Q: What level of humidifier suitable for the grow room?

A: The humidifier with consistent and exceptional performance and humidity level above 40 %, are ideal for the grow room.

Q: Should I use filtered water for the humidifier in the grow room?

A: It depends on the machine you have just bought about this humidification. Some humidifier comes with a built-in filter. In that case, you don’t need to use distilled water. But the humidifier that produces white dust needs to be filtered water for that humidifier.

Final Thought


Being an indoor gardener, you must have to look for a humidifier for the humidification of your grow room. You must have found the article quite informative for your next purchase, as we have put all the authentic information. Our selected six products are the result of excellent web research.

I appreciate your patience. Though these humidifiers can be used for humidifying the air of the house also, we choose the best product for the grow room. If you have found your favorite grow room humidifier, just grab your suitable one.

See also: Best Grow Tent Dehumidifiers Review & Buying Guide