7 Best Humidifiers For Grow Tent Reviews 2023

Today, we live in a world of shrinking spaces. Many people live in multi-story concrete buildings. However, this cannot stop you from growing plants if this is what you like to do. Indoor planting is one hot trend, and more and more people are leaning toward it.

Now, if you follow indoor planting as your passion or hobby, a grow tent can be the best choice. A grow tent is a great facility that you can manage inside your house and keep the plants healthy and nourished with the help of a few gadgets.

One should never forget that all plants are not equal. Different plants require different conditions and environments to grow ideally. Even a single plant requires varying amounts of humidity and temperature at its different stages of development. The atmosphere is one of the most crucial aspects as far as plant growth and nourishment are concerned. So, gardeners and plant keepers are very cautious and always work towards maintaining the right environment for the plants to grow in the best possible manner.

In a grow tent, the environment is even more crucial as you will maintain it wholly as the grow tent has no connection with the external environment. So, when you keep a grow tent, you must keep in mind that you are also playing Mother Nature. As an indoor gardener, it becomes your crucial duty to check if there is the proper humidity and coolness in the grow tent for your kept plants or not.

Maintaining the right environment for your grow tent is a hectic as well as an effort requiring job.

Definitely, one manages a grow tent out of love and passion for planting. However, if it becomes too time-consuming, you cannot continue with it as you have to manage many other things in your daily life.

Today, humidifiers for grow tents have eased things for all indoor gardening lovers. You can easily manage the temperature, and humidity levels in your grow tent using a good quality and properly fit humidifier for growing weed.

Honeywell HCM 350W Germ-Free Cool Mist Humidifier

Among the list of the best humidifiers for grow tents, HCM 350W Germ-Free Cool Mist Humidifier is a shining name as a humidifier. This humidifier is basically a product of the Honeywell brand. It has an ample water capacity of 1 gallon or 3.7 liters. So you don’t have to worry about the refill every time. It will continue doing its job for the next 24 hours unhindered once the humidifier is with water.

As far as the coverage capacity of this humidifier is concerned, it covers a large area of 500 square feet, which is a good enough coverage capacity. It is the best humidifier for grow tent options for medium-sized grow tents.

The production has straightforward maintenance. You will not see any leakages. Similarly, the shape of the humidifier enables easy cleaning with minimal effort involved.

It has UV technology-enabled light, according to the brand product’s details, killing almost 99 percent of harmful germs, bacteria, mold, and viruses.

The humidifier provides an easy mobility option. With its powerful coverage capacity, it will bring the humidity level of the grow tent within no time. So, once it has done the required job in the grow tent, you can even get it to your bedroom or living room and use it there as well in dry weather. It will protect you from static electricity around the area you are in.

Honeywell HCM 350W Germ-Free Cool Mist Humidifier is made of high-quality plastic. Even though the weight of the product is very light, the structure of the humidifier is strong.

It comes in both the standard popular colors, which are black and white.

Another great feature of this great humidifier for grow tents and grow rooms is that energy-wise, it is brilliant. Once in use, it will save you a lot of energy as it employs high-quality parts. It runs on just 60W of power.


  • Quiet operation
  • It offers three different fan speeds: low, medium, and high
  • The water reservoir is easy to handle and refill
  • Filters the air and Kills harmful microorganisms such as bacteria and viruses


  • Not one of the most aesthetic humidifiers for grow tents out there.

Pure Enrichment MistAire Ultrasonic Cool Mist Humidifier

MistAire Ultrasonic Cool Mist Humidifier by Pure Enrichment is an intelligent humidifier for grow tents. It is highly suitable for small-size grow tents. If you have a small size grow tent, you don’t need to spend an enormous sum of money on large-size humidifiers for grow tents.

MistAire Ultrasonic Cool Mist Humidifier takes up very little space. Its pear-like shape gives it an even more sleek and smart look.

In its entirety, MistAire Ultrasonic Cool Mist Humidifier by Pure Enrichment is made of high-quality plastic material. It is exceptionally light in weight and can be carried from one place to the other easily. Its most selling color is a blue and white combination.

In case the water level gets lowered, or the required level of humidity is achieved, this humidifier for grow tent has an inbuilt automatic shut-off feature. In this way, it saves both the plants as well as the humidifier itself from disturbances.

Furthermore, MistAire Ultrasonic Cool Mist Humidifier by Pure Enrichment is energy efficient and works on 120 V and 50 Hz of power only.

It also has an in-built directable nozzle so you can direct the mist in the required direction in a grow tent.

It has a small 0.7-liter water tank which provides a run time of about 10 hours. According to the requirement, you can set this humidifier in both high and low mist settings. Based on its small water tank size, it is obvious that it cannot be used for large-sized grow tents. However, it is a perfect choice as a humidifier for grow tents of small sizes for non-commercial growers of plants.


  • Five years of warranty by  Pure Enrichment
  • Sleek  and smart shape
  • Inexpensive as compared to many other humidifiers with similar features
  • It comes with a beautiful night light feature


  • It does not work well in large grow tents. Limited to be used for small grow tents only.
  • Need refilling for several times if continuously employed

LEVOIT Classic 200S 4L Ultrasonic Humidifier

Classic 200S 4L Ultrasonic Humidifier by LEVOIT is one of the best humidifiers available in the market out there. It is suitable for 4×4 grow tent. Its smart size and built design give it an attractive and extravagant look and style.

Classic 200S 4L Ultrasonic Humidifier is easily manageable from the comfort of your mobile screen. You can quickly check the efficiency and performance of this humidifier with the help of a smartphone. You can also operate this handy humidifier for grow tents through Google Assistant and Amazon Alexa.

If you choose and buy this humidifier, it will be one of the best addition to the grow tent managed by you. This being an ultrasonic humidifier guarantees a low noise level. So, it does its work efficiently without disturbing you.

The classic 200S model of LEVOIT humidifier comes with three different mist levels. You can set any level of mist according to the requirement of your grow tent.

One precaution with this particular ultrasonic humidifier is that while you are using it for your maintained grow tent, you should not directly add water to the humidifier’s base. In case you do not pay heed to this precaution, your humidifier may start to malfunction and don’t work correctly.

One thing that seems missing in this otherwise rather complete humidifier is that it has only a cool-mist option.


  • 30-day money-back guarantee by LEVOIT
  • No frequent requirement for filter changing
  • 360-degree nozzle


  • Being an ultrasonic humidifier, it has High prices, relatively
  • Refill takes time
  • The missing feature of the water level notification

LEVOIT Warm and Cool Mist LV600 HH Ultrasonic Air Humidifier

This is the second entry of a LEVOIT-built humidifier in this list of the best humidifiers for the greenhouse in 2021.

It has both warm as well as cool mist options. The material used to build this humidifier is Acrylonitrile Butadiene Styrene. The humidifier runs on a regular AC power supply and takes a very small electricity input of 120 V and 50 Hz.

It has a proper display screen that lets you know the current humidity levels in the grow tent. This helps you in maintaining just the right humidity and temperature level in your grow tent.

It also has auto mode and switches off by itself when the set humidity levels are achieved, or the water level goes excessively low and a refill is required. This saves the health of the plants that you have kept in your grow tent, as well as the proper functioning of the humidifier for grow tent.

This version by LEVOIT is also a superior version as compared to earlier Levoit versions, as it has a larger water tank attached to it. LEVOIT Warm and Cool Mist LV600 HH Ultrasonic Air Humidifier come with a water tank which 6 liters of water capacity, which saves you from the constant worry of refilling faced, especially when you have a humidifier with a small-sized water tank.

One precaution you must also pay attention to not only for this particular humidifier but also for all the humidifiers out there is that as you are cleaning the humidifier, you should make sure that water does not enter the air vent.

Another standard precaution you should always take with your humidifier is that you should always try to use distilled water for your humidifier instead of tap water.


  • Easy to clean
  • Provides both cool and warm mist options
  • Remote control feature
  • Almost zero noise level
  • Upgraded version


  • A separate purchase of oil essence is required.

Crane EE-5301 Drop Ultrasonic Cool Mist Humidifier

This pear-shaped humidifier is one of the best options as a humidifier for grow tents. The topmost quality of this particular humidifier is that it does not create any kind of irritating noise.

The humidifier has a water tank with good water carrying capacity of 1 gallon, which is enough to provide a run time of 24 hours. Similarly, it is straightforward to clean.


  • Automatic shut off
  • Water level indication
  • 360-degree mist direction control
  • Innovative and sleek design.


  • Issue with refilling
  • Cool mist only

Vicks (V745) Warm Mist Humidifier

This humidifier also manages to enter the list of the best humidifiers for grow tents available in the market due to its multifarious qualities. This humidifier provides a warm mist. If you are managing a grow tent in cold and dry areas, you should definitely buy this warm mist humidifier for grow tent for best results.

It is also technology-enabled to kill harmful bacteria and viruses as well.


  • Three years of warranty
  • Night lights
  • Knob control
  • Low cost


  • Difficulty in cleaning
  • No digital display

Amazon Basics Ultrasonic Cool Mist Humidifier

This humidifier by Amazon Basics is also the best option available in the market. It comes in two colors: White and black.

Amazon Basics Ultrasonic Cool Mist Humidifier is also a good option as it is available for purchase at a comparatively low price.

The humidifier comes with easy knob control and also has an auto shut-off feature.  Furthermore, it gives an easy filling option from the top. It is a perfect option for mid-size grow tents as its coverage capacity is around 350 square feet.

Its water tank has up to 4 liters of water capacity, and this saves you from the continuous worry of refilling.


  • Low cost
  • Easy to clean
  • Nightlight option
  • Whisper-quiet operation


  • No digital display

How to raise the humidity in grow tent?

A humidifier is one of the fastest and most efficient ways to increase humidity in your grow tent, grow space, or other areas. A humidifier is especially useful for indoor plants during winter. It releases moisture into the atmosphere to increase humidity.

What to consider before buying a humidifier for grow tent?

Grow Tent size

First and foremost, the most important thing to note while choosing a humidifier for grow tent is to measure the dimension of your grow tent area. Some people make a blunder that they choose the humidifier first and then buy a grow tent. Similarly, some buy a powerful humidifier with high coverage capacity and large size without considering that the grow tent they have is of a small size.

Now, in a small-sized grow tent, if you have a large-sized humidifier, the humidifier will cover all the vital space, and no serious space will be left for you to keep your plants. In a small grow tent, you must wisely use the already small area and use a humidifier that consumes the least space. It is important that you don’t repeat such mistakes when you go out in the market to choose a humidifier for a grow tent.

Noise level

Noise is an essential factor in a humidifier when you are looking for a humidifier for grow tent. Ultrasonic and warm humidifiers are quiet types of humidifiers as they don’t have a fan. On the other hand, cool mist humidifiers need a fan working to cool the water vapors as they come out of the humidifiers. Based on this reason, cool mist humidifiers for grow tents can create some type of noise. However, even within the cool mist humidifiers, if the humidifier’s fans are of good quality, the noise level will be of extremely minimum level and easily bearable.

While humidifiers for grow tents with low noise levels will do their work quietly, humidifiers with irritating noise levels could become a headache for you. Therefore, whenever you plan to buy a humidifier, it is essential that you factor in the noise level of the humidifier.


When choosing a humidifier for grow tent, the humidifier’s humidity is another crucial factor to look at. The humidifiers have different coverage capacities. There are small-range, medium-range, and large-range humidifiers for grow tents available in the market. Small-range humidifiers have less than 200 square feet of coverageand medium-range humidifiers have coverage between 200 and 500 square feet. Similarly, humidifiers for grow tents with large coverage capacity have more than 500 square feet of area coverage.

The coverage capacity of a humidifier also tells about the speed with which a humidifier can cover the entire space with the required humidity and temperature levels.


Another essential aspect to consider while choosing a humidifier for grow tent is the budget. The good thing is that all the excellent quality humidifier-providing brands offer humidifiers at highly reasonable and affordable prices. So, there should not be a problem in buying good quality and appropriate humidifiers for grow tents. However, it is recommended that you don’t fall for discounts and low prices and settle for a humidifier that fails to meet the requirements of your grow tent.

Similarly, the durability of the product and mist frequency are also among the essential things that you should include in your checklist when choosing a humidifier for grow tent.

Now, if you check and analyze the market to choose a humidifier for grow tents, you will observe that the market has thousands of options for humidifiers for grow tents. There are a large number of humidifier categories, such as ultrasonic humidifiers for grow tents, cool mist humidifiers for grow tents, warm mist humidifiers for grow tents, evaporative humidifiers for grow tents, etc.

Each category of humidifier has multiple options from different brands and sellers. Similarly, there are also other varieties of humidifiers based on the size of the water tank as well. In the midst of this, finding the most suitable humidifier for grow tent becomes a stressful task at times.

Comparison Of The Best Humidifiers For Grow Tent

HumidifierBrandCapacityCoverage ft²Weight(lbs)Run timePrice
Honeywell HCM 350W Germ-Free Cool Mist HumidifierHoneywell3.78 liters5008.3624HCheck Price
Pure Enrichment MistAire Ultrasonic Cool Mist HumidifierPure Enrichment0.7 liter1751.110HCheck Price
LEVOIT Classic 200S 4L Ultrasonic HumidifierLEVOIT4 liters3503.540HCheck Price
LEVOIT Warm and Cool Mist LV600 HH Ultrasonic Air HumidifierLEVOIT6 liters7535.360HCheck Price
Vicks (V745) Warm Mist HumidifierVicks3.78 liters5004.4124HCheck Price
Crane Drop Ultrasonic Cool Mist HumidifierCrane USA, Inc.3.7 liters5004.524HCheck Price
Amazon Basics 4L Ultrasonic Cool Mist HumidifierAmazon Basics4 liters3503.0640HCheck Price

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