Best Humidifier for Grow Room / Tent – 5 Top Reviews

Dry air may deprive your plants of water and interfere with their growth. So, this calls for a high performing humidifier for your grow room/tent.

Choosing the right model; however, is not as easy as it sounds. There are quite a few things you have to take into account.

During our research, we found out that most indoor growers have had remarkable success with cool mist humidifiers. But that is not all.

Their choices were also based on other design features, such as water tank capacity, automatic shut-off, choice of water hardness, and so on.

In this review, we managed to find five top products that are undoubtedly the best for your grow room/tent.

Top Pick

The TaoTronics Cool Mist Humidifier is our top pick. While the rest of the products on our list are amazing, this one comes with additional benefits for an indoor grower.

Top 5 Humidifier for Grow Room / Tent

1.TaoTronics Cool Mist Humidifier – Best Overall

View on Amazon

Introducing the TaoTronics, a high-quality cool mist humidifier that will keep your grow room or grow tent relative humidity in perfect levels.

Key Features:

• Delivers cool mist
• Bottom refill type
• Equipped with a humidity monitor
• Lower water protection
• Four-liter capacity

Product Description:

This product has a spacious tank that holds four liters of water. The amount of time this capacity will last will vary concerning your preferred settings.

There are three fan settings for controlling how much mist is added to your grow room at once. You will have to press the (+/-) button to either increase or decrease the mist.

This unit comes with a rotating nozzle, which is a great feature because you can easily control the direction of the mist by turning the nozzle.

This model comes with nightlight/sleep mode. You can switch to this mode by pressing the nightlight/sleep button and press the button again to enter sleep mode.

This unit also allows you to set the timer, which can be set for one to twenty-four hours (one hour increment) of continuous use.

Upon opening the package you may notice a pretty strong plastic smell, which is probably from the manufacturing process of the filter.

Pros:

• Has spacious water tank capacity
• Multiple setting allows for superior mist control
• Has a nightlight feature that allows you to observe water levels at night
• Rotating nozzle allows for multiple mist directions
• Comes with a timer for customized operation

Cons:

• May produce a plastic smell during unboxing

Conclusion

This high performing humidifier will ensure that your plants grow healthy without bad odors or micro-organisms.

2.Hilary Cool Mist Humidifier – Most Portable Design

View on Amazon

If you are looking for an ergonomically designed ultrasonic unit for your grow room or tent, look no further than the hair Cool Mist Humidifier.

Key Features:

• Generates a cool mist
• Ultrasonic technology
• Ergonomic arc-shaped tank reservoir
• Automatic shut-off
• Filter-less humidifier

Product Description:

This unit features ultrasonic technology, which is a good feature because it lowers the noise level to about 32 decibels for whisper-quiet humidification.

It has an arc-shaped water tank, which is ergonomically designed to fit your hand perfectly, providing you with a secure grip when refilling.

The water tank has a capacity of 0.5 gallons that can run non-stop for approximately thirty hours, keeping your plants constantly hydrated.

This unit comes with a timer, which is great because you can easily control the humidification period by choosing your preferred time limit.

This humidifier is filter-less. So, you do not need to worry about yourself expensive filter replacement or regular cleaning.

This model is pretty small in size and the 0.5-gallon reservoir may not be sufficient for a larger grow room.

Pros:

• Delivers a whisper-quiet operation
• Easy to handle for stress-free water tank refills
• Integrated timer allows for customized humidification
• Filter-free design eliminates expensive filter replacement costs
• Automatic shut-off ensures the unit goes off when the water level drops

Cons:

• Water tank reservoir is pretty small for humidifying a larger grow room

Conclusion

The hair Cool Mist Humidifier is the go-to model if you are looking for superior performance in a compatible design.

3.InnoGear Cool Mist Humidifier – Most Advanced Sensitive Touch Control

View on Amazon

Improve the growth and health of your indoor plants with the InnoGear Cool Mist Humidifier. The model that comes with advanced sensitive touch control.

Key Features:

• Four-liter water tank reservoir
• Advanced sensitive touch control
• 360-degree swivel adjustable nozzle
• Whisper-quiet operation
• LED indicator turns off automatically

Product Description:

This humidifier comes with an intelligent touch control button, which is a good feature because it allows you to control all your settings by pressing the same button.

This unit comes with a fairly large water tank capacity of four liters that ensures you have a long runtime even in the highest mist setting.

The reservoir is also fitted with a built-in water tank handle that is remarkably easy to hold and lift with a single hand for stress-free refilling.

It comes with a 360-degree rotatable nozzle, which allows you to point the mist in any of your preferred direction without moving the unit.

It is an ultrasonic humidifier, which means it runs quietly without generating annoying noises. It has three humidity settings (low, medium, and high) for customized operation.

You can easily receive a defective product that leaks slowly at the base. So, confirm the quality of the unit during unboxing.

Pros:

• Easy control of all settings with one sensitive touch button
• Fairly large water tank capacity for long humidification periods
• Built-in handle makes refilling of the water tank a breeze
• Swiveling adjustable nozzle allows for easy redirection of the mist
• Whisper-quiet operation

Cons:

• Possible to receive a unit with a leaking base

Conclusion

This slim profile cool mist humidifier is super easy to control with the sensitive touch button.

4.Vivos 6L Ultrasonic Humidifier – Largest Tank Capacity

View on Amazon

If you are looking for a unit with the largest water tank capacity for your grow room, look no further than the Vivosun 6L Ultrasonic Humidifier.

Key Features:

• Six-liter tank capacity
• Touch and remote control
• Adjustable mist stream settings
• 360-degree rotating nozzle
• LED nightlight mode

Product Description:

It comes with an advanced touch screen control that is remarkably easy to operate and navigate, allowing for smooth mode changing.

There is also a hand remote control, which allows you to adjust (from anywhere in the grow room or tent) the mist levels concerning your application.

It is fitted with a 360-degree rotating nozzle with directional guides. This feature allows you to direct the mist to the canopy of your plants from any position.

There is an LED nightlight that clearly shows the water level when turned on. This ensures you refill the water tank reservoir in time.

It also comes with automatic shut-off and timer. You can set the timer to mist your grow room for a specified time duration and then shut-off automatically.

The model we tested didn’t have specific humidity settings. We could only set the period of humidification, such as one hour, two hours and so on.

Pros:

• Super easy to use touch control panel
• Hand remote allows you to control the unit from anywhere in the grow room
• 360-degree rotating nozzle allows for all-direction misting
• LED nightlight allows for effective water level tracking
• Integrated timer allows for customized misting

Cons:

• Does not have specific humidity settings

Conclusion

This model is the perfect choice for growers with large grow rooms or grow tents.

5.Levoit 4L Cool Mist Humidifier – Best Value for Money

View on Amazon

You can easily keep your plants hydrated without breaking the bank with the Levoit 4L Cool Mist Humidifier.

Key Features:

• Four-liter tank capacity
• Advanced ultrasonic technology
• Three mist speed settings
• 360-degree adjustable nozzle
• One-touch button control

Product Description:

The first thing that we like about this model is the view window, which allows you to track the water level for timely refills.

The Levoit advanced ultrasonic technology is not only whispered quiet but also produces the finest mist for effective humidification of your grow room or tent.

This model comes with a one-touch button control that allows for easy and quick operation, especially when changing mist speed settings.

The nozzle of this humidifier rotates 360 degrees. So, you can direct the mist in any direction, making sure that your plants are effectively humidified.

Another amazing feature is the automatic shut-off, which will automatically shut down the unit when the water level drops.

The water tank design is not the most impressive one because it seems to make a mess if not faultlessly handle.

Pros:

• View window tells you exactly when a refill is necessary
• Advanced ultrasonic technology produces a fine mist
• One-touch button control boasts stress-free operation
• Rotating nozzle allows for effective mist direction
• Automatic shut-off prevents a meltdown when the water level drops

Cons:

• Possible to receive a leaking model

Conclusion

Regardless of the very affordable price point, the Levoit 4L Cool Mist Humidifier comes with those important features you have been looking for.

Buying Guide

Choosing a humidifier for your grow room or tent is not a straightforward process. There are several considerations you have to make.

Grow Room / Tent Size

To choose the perfect humidifier, you need to know your grow room or tent size. You can achieve this by calculating the length and width.

Then multiple the length and the width to get the surface area of your grow room.

So, if you want to humidify a grow room or tent that has a surface area of 4 x 4 feet, you will have to choose a humidifier that is suitable for the room size.

Types of Humidifiers

Different types of humidifiers are available. Their use will depend on your needs. Each humidifier has its individual properties.

The two most popular humidifiers that you can consider to buy for a grow room or tent are:
Ultrasonic Humidifier

An ultrasonic humidifier produces a vapor through a unique mechanical action on either tap or distilled water. Usually, the water is agitated through ultrasonic vibrations.

Then the water moves from the tank through a valve channel to a small chamber where an ultrasonic a transducer is located.

The transducer vibrates at a very fast rate. The fast-paced oscillation forces the water to make very fine water droplets that are dispersed into your room in the form of a mist…

An ultrasonic humidifier with a tank capacity of 1.5 gallons should run for a proximately sixteen hours. We prefer cool mist humidifiers for plants instead of warm mist.

Evaporative Humidifier

This type uses another technology for household humidification. A typical evaporative humidifier has a water tank of about 1.2 gallons.
An absorbent paper wicking filter causes the water in the tank to evaporate, and a fan circulates the mist air into the room.
The mist is not actively forced into the air, but passively evaporates. Then an integrated fan circulates moist air into the room.

Water Hardness

Water hardness describes the amount of minerals in your water. If you have hard water, this means you have a lot of minerals in the water.

If you have moderately hard water, usually there is a medium amount of minerals. If you have soft water, you have almost no mineral deposits.

Depending on the water’s hardness, we can actually recommend different systems. We recommend you use soft water with ultrasonic and evaporative types.

Special Features

Up to this point, we have covered all the major features to look for in a grow room/tent humidifier. But there are other special features that you can consider.

First, make sure the unit you choose has a 360-degree rotating nozzle. This will allow you to point the mist to your desired direction.

Second, adjustable mist settings. This will allow you to customize the mist flow. You can set the mist flow to be fast, medium, or slow.

Third, consider a unit that has a large view window, since this will allow you to track the water level and know when a refill is necessary.

Fourth, safety features. We recommend you choose a humidifier that is equipped with a timer and automatic shut-off system.

Closing Words

After the extensive research, shopping, and testing we have done, we confidently consider our overall best pick to be the TaoTronics Cool Mist Humidifier.

This is a state-of-the-art unit that comes with the finest automatic humidity monitoring features. It basically does all the work of maintaining optimum moisture levels in your grow room.

It has a moderately large water tank of four liters that should keep your grow room or tent humidified for approximately thirty hours.
Overall, we recommend an ultrasonic cool mist humidifier for your plants.