6 Best Humidifiers For Grow Tent or Grow Room 2021

You need to get everything right when growing plants indoor. This is why grow tent owners need humidifiers to keep the grow tent humidity at the right level. In this article, we will be enlightening you on humidifiers for grow tents. We will also be reviewing some of the best humidifiers for grow tents too.

Why You Should Trust Us On This Guide?

One reason you should trust us on this guide is that we feel it is our duty to educate people on matters relating to grow tents. Besides, we've written a lot on grow tents and appliances you can use in grow tents.

How To Choose The Best Humidifier For Grow Tent?

Wondering how to choose the right humidifier for your grow tent? Well, worry no more because that is why we are here. We will be giving you tips on how to choose the best humidifier for your grow room below.

Size Of The Grow Tent

First, you need to consider the size of the grow tent before choosing a humidifier for your grow tent. If your grow tent is below 300 square feet, you should choose a small humidifier. Also, if the grow tent is between 350 square feet and 500 square feet, then a medium-sized humidifier is for you. Finally, for big grow rooms of 550 square feet and above, then you should be going for large humidifiers. Moreover, we indicated the room size each humidifier on our list is suitable for.

Cool Mist Humidifier Or Warm Mist Humidifier

Next, you need to decide if you want a cool-mist humidifier or a warm mist humidifier. If the environment is very cold, you should go for a warm mist humidifier. Also, if the weather is mostly warm, then a cool-mist humidifier is what you need. Besides, the type of plant you want to grow can also determine which one you should go for. Lest we forget, some humidifiers combine both the warm and cool mist humidifier.

Noise Level

We can confidently confirm that buying a noisy humidifier can make you go nuts especially if your grow tent is close to your room. Apart from it disturbing your sleep, you might not be able to concentrate with the noise in the background. This is why you should ensure that the humidifier you will be buying is ultra-quiet. Again, ultrasonic and evaporative humidifiers are usually noiseless. This means you should be on the lookout for these types of humidifiers.

Auto Features

Humidifiers with auto features make everything easier. For example, some humidifiers turn themselves off when the water tank is empty. Some humidifiers have timers that allow you to preset the number of hours you want them to run for. We advise that you should go for humidifiers with these features. Moreover, the auto shut off feature is more important as it will help to prolong the life of the humidifier.


A humidistat helps in shutting off the humidifier when it reaches the desired humidity level. It is advisable to get humidifiers with this feature if you do not want the humidity in the grow tent to go above a certain level.

Cleaning And Maintenance

You should also choose a humidifier that is easy to clean and maintain. You should be able to clean your humidifier yourself without taking it for professional cleaners. In light of this, you will not need to spend more money to clean or maintain your humidifier.


Whatever appliance you buy should be pocket-friendly and a humidifier is not left out. However, you should also try to balance the cost of the device with its quality. The reason for this is you do not want to buy a humidifier that will not stand the test of time.

Read more: How to pick best CO2 regulators for grow room?

6 Best Humidifiers For Grow Tent or Grow Room

Below is a list of some of the best humidifiers for grow tents and their reviews.

1. TaoTronics Cool Mist Humidifier

There are lots of humidifiers for grow tents available but the Taotronics Cool Mist Humidifier remains one of the most impressive. First, we like that it is capable of working silently. Besides, it works while producing less than 38 DB of noise. In light of this, you will find that this is one humidifier that won’t disturb your sleep at night even if you are using it in your bedroom.

Furthermore, it has a 4-litre tank and it can work all night without any problem. Moreover, when the tank is full, you can use it for over 25 hours. Worthy of note too is that this humidifier is capable of humidifying the air in rooms with a size of 10 to 30-meter square. In light of this, it is perfect for a grow room. Also, it has a LED display that shows the necessary information about the humidifier. With its inbuilt humidistat, you can see the current RH.

Again, you have a choice of choosing between 3 mist levels. With this, you get to choose the humidity level of the room. Also, it has a nightlight and sleep mode that turns off the LED screen when you do not want to view the LED screen again. We also like that it shuts itself off when it runs out of water. Finally, it is safe to use as it has a cartridge that filters the water from harmful organisms and odour.


  • Can work all night
  • It has an informative LED screen
  • It is capable of shutting off itself when it runs out of water
  • It filters microorganisms
  • Runs quietly


  • None

2. Everlasting Comfort Humidifiers (6L)

Next on our list is the Everlasting Comfort Humidifier. This humidifier is designed for the bedroom but it is also great for the grow room. It has a 6-litre tank which is equivalent to 1.6 gallons. Not to mention, it has a wide range as it can cover a room up to 500 square feet. Also, this humidifier is capable of working for up to 50 hours straight. And we can all agree that this is quite impressive.

Again, it comes with an oil tray where you can add oils which the humidifier will circulate. With this oil tray, you can add different oil fragrances to give the room a nice, fresh aroma. Furthermore, with this humidifier, the humidity level will remain above 40%. In light of this, airborne diseases and bacteria are reduced. It also helps against allergies, sinuses and coughs.

Also, it has an auto shut off feature. This feature helps in turning off the humidifier automatically when the water is empty. With this, the machine is protected against damage hereby making it last longer. We also like that you do not need to buy expensive filters with this humidifier. This is because the manufacturer used a unique humidifier design which means you can use any type of water without worry.


  • It turns off itself when it runs out of water
  • It helps against airborne bacteria
  • It has an oil tray
  • It can last for up to 50 hours
  • It can cover up to 500 square feet of land


  • You might get water spills while refilling

3. LEVOIT Humidifiers For Large Rooms (6L)

Next on our list is the LEVOIT Humidifier for Large Rooms. It has a 6-litre capacity which is approximately 1.4 gallons. And with this, you can use it for 36 hours straight provided you use it with the ‘low mist level’ settings. Also, it is capable of humidifying a 750 square feet area. In light of this, you will find that this is a good choice for most grow rooms. Again, it can work without any noise which means your sleep won’t get interrupted by using this device. Besides, you can also turn off its display off too.

Furthermore, when it runs out of the water, it can shut itself off which is quite cool. Not to mention, it has a remote control which means you can change the humidifier's settings without having to leave your seat. It also has a timer that lets you keep the device on for a specific number of hours. This is particularly important for those with grow rooms. Moreover, it also has an essential oil diffuser that lets you add oils with an aroma to the humidifier. This will help the room smell better.

We also like it has a warm and cool mist setting. The advantage of the warm mist is that it can keep you warm during cold weather. Not only that, but it also helps in killing germs faster than cool weather condition. Finally, the benefit of the cool mist is that it keeps the plants in the grow room hydrated.


  • It comes with a remote control
  • It has an essential oil diffuser
  • It has a timer
  • It has both warm and cool mist settings


  • It doesn’t read humidity correctly

4. Pure Enrichment MistAire Ultrasonic Cool Mist Humidifier

One of the factors that determined the humidifier that will make our list is the reputation of the company. Since the Pure Enrichment Company is a well-known company with a good reputation, we could not help but pick one of their products. Their MistAire Ultrasonic Cool Mist Humidifier has a 1.5-litre tank and it can work for up to 16 hours. However, you can agree with us that the size is quite small which means it won't be covering enough ground. Because of this, it is only suitable for small grow rooms.

Furthermore, it also has an auto shut off feature. With this feature, you do not have to worry about the water in the tank finishing abruptly as it will go off by itself. Again, it has a night light which you can turn on to give the room a 'night feel'. Not only that, you can choose between high and low-speed settings. This way, you have control over the speed of the humidifier for your plants or comfort.

Besides, it comes with some accessories. And they include; an AC power adapter and a brush for cleaning disc. It is also easy to use as it comes with a user manual to help you get a hang of it. Finally, to attest for the quality of the product, the manufacturers placed a 5-year warranty on the humidifier.


  • It comes with a 5-year warranty
  • It has an auto shut off feature
  • You can choose between high and low-speed settings
  • Comes with numerous accessories


  • It is small

5. Venta LW15 Airwasher 2-in-1 Humidifier and Air Purifier

Next on the list is the Venta LW15 Airwasher 2-in-1 Humidifier and Air Purifier. We like this product so much because it combines an air filter/purifier with a humidifier. With this device, you will find that you will have no case of a dry room because it keeps the humidity level up. Not only that, but it also helps in purifying the air by eliminating dust, pollen and dander. With this, rest assured that the room will not only be cool, you will also breathe better too.

Also, it has a capacity of 1.4 gallons and it can cover up to 200 square feet area. This makes it a great option for people with grow rooms. Besides, you can also use it in offices and bedrooms. Another reason we like it is that it is energy efficient. This means you will be consuming less power than you should hereby leading to a reduction in energy costs.

We also like that it helps against allergies and dry skin. Not to mention; it also has an auto shut off feature for situations when it runs out of water. Finally, it has a 10-year warranty which is one of the highest you will find in the industry.


  • It has a 10-year warranty
  • It helps in combating allergies, flu and dry skin
  • It is a versatile device
  • It runs quietly


  • It is not easy to clean

6. Pure Guardian H965AR Ultrasonic Cool Mist Humidifier

Last but not the least is the Pure Guardian H965AR Ultrasonic Cool Mist Humidifier. You can use this humidifier in your grow room or any part of your home. Besides, it also helps against dry skins and allergies. We like that it is easy to manage or maintain. And this is due to its 'silver clean protection feature'. This feature helps to ensure that there are no traces of slimy mould and mildew in the humidifier's water tank.

Furthermore, it has a 1-gallon tank which is great for a 320 square feet room. Not to mention, the humidifier can run for up to 70 hours which we can all agree is impressive too. Again, you can also use your essential oil with the humidifier and this is made possible by its aromatherapy tray. With this, you are sure to get a better smelling room. However, do not add the essential oil directly into the water tank to avoid clogging the tank.

Moreover, the tank has an indicator for when the water level is running low. This will let you know when to refill the tank. Besides, it also has an auto shut off feature for situations where the tank runs out of water. Finally, it has a 3 mist speed control that allows you to choose how fast or slow you want the humidifier to run.


  • It has a 3-mist speed control
  • Indicates when it is running low on water
  • It is easy to clean and maintain
  • It runs quietly


  • It leaves a lot of water around it.

The Importance of a Humidifier in a Grow Room Set up?

Indoor growers or grow tent owners are in a constant battle of keeping the humidity level in their grow area on the right level. Besides, this is particularly important for seedlings or cuttings. This is because they need almost twice the humidity of plants that are in the flowering stage. For this reason, you need to get a humidifier to give the plants the humidity they need.

Note that plants need various humidity levels and you need to be sure about these levels for your plants to thrive.


After concluding this article, you can see that the importance of humidifiers for grow tents cannot be overemphasized. We are also sure our review on the best humidifier for grow tents was helpful. Besides, we assure you that the 6 humidifiers on our list will serve you well. However, we were most impressed by the Taotronics Cool Mist Humidifier. The reason for this is not farfetched as it is capable of working for long hours. It also has a bright LED screen and a microorganism filter among others.

Lest we forget, we also included a buying guide for humidifiers for grow tents in the article. This will help you make the right decision when choosing the best humidifier for grow tents.

1 thought on “6 Best Humidifiers For Grow Tent or Grow Room 2021”

  1. use a fan to blow air through an evaporative wick filter, which makes more noise than a warm moisture humidifier.


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