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Dehumidifier for Grow Tent: Top 7 Benefits of Using It

Growing cannabis indoors is a rewarding experience that promotes joy and well-being and can elevate mood, stimulate creativity, and cleanse the air. With the continued expansion of cannabis legalization, more people are opting to cultivate their cannabis plants instead of buying them from dispensaries.

A frequently underestimated aspect of nurturing plants in a tent is the importance of regulating humidity levels.

The air humidity in the tent is too high, which will affect the photosynthesis of cannabis and the absorption of minerals. In addition, high humidity can also easily promote the germination of fungal spores, causing botrytis, powdery and other diseases.

Therefore, to ensure the average growth and development of marijuana, proper humidity must be maintained in the tent. While controlling the temperature with ventilation and air conditioning will help reduce humidity, using a dehumidifier is a sensible long-term solution. With a dehumidifier, growers can stabilize humidity levels and prevent the appearance of mold and mildew, resulting in healthier plants and higher yields.

Managing humidity can be challenging for both novice and seasoned growers. In this blog post, we'll discuss the concept of grow tent dehumidifiers, their advantages, some top dehumidifiers available on the market for your grow tent, and more.

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Understanding Dehumidifier for Grow Tent

A dehumidifier is an appliance designed to reduce the moisture content in the air by removing excess water vapor. A grow tent dehumidifier functions similarly but is specifically adapted to meet the distinct needs of a grow tent environment.

In grow tents, high humidity can lead to mold growth, leaf wilting, and other plant diseases that can stunt or even kill plants. Dehumidifiers for grow tents help regulate humidity levels by removing excess moisture from the air.

Why Is Humidity Control Important For Cannabis Growers

Humidity refers to the amount of water contained in the air, and different growth cycles of cannabis crops have different requirements for humidity. The right humidity will promote the growth of cannabis.

Conditions with a relative humidity range of 40-60% are the optimum humidity levels for cannabis crops to thrive. Deviations from this range can negatively impact their health. In addition, elevated humidity levels foster an environment conducive to mold growth. In contrast, low humidity may stunt plant development, increase the risk of pest infestations, and potentially lead to plants drying out.

Benefits of Using Dehumidifiers for Cannabis Growers

Prevent Mold Growth

If the grow tent is too humid, mold can grow on the cannabis plants, causing stunted growth or death. A dehumidifier keeps humidity at the right level and stops mold growth.

Prevent Pests

Humidity is a favorable climate for pests to thrive, so using a dehumidifier will help keep pests from affecting your plants.

Stable Temperature

Dehumidifiers work by absorbing moisture to maintain the proper temperature indoors to promote the healthy growth of cannabis plants. But, likewise, temperature also needs attention. The right temperature also helps cannabis grow.

Increase Production

By keeping your grow tent at the proper humidity level, your marijuana plants will grow faster and produce higher yields.

Improve Plant Health

Proper humidity levels can improve plant growth and overall health, producing better products.

Conserve Energy

Employing a dehumidifier in your grow tent helps lower energy expenses, reducing the need to operate the air conditioner frequently.

Below are some reasons why incorporating a dehumidifier in your grow tent is beneficial.

Why Every Cannabis Grower Needs a Dehumidifier for Grow Tent

Protecting Your Investment

You have already devoted time and resources to nurture your plants, and the last thing you desire is for them to perish before harvest. A dehumidifier protects your investment by maintaining a moisture-free and healthy plant environment.

Improving Air Quality

A dehumidifier also helps improve air quality inside the grow tent. Removing excess moisture from the air also purifies the air, ensuring your plants have a sufficient supply of clean air.


A dehumidifier for grow tents is a one-time investment that saves you costs in the long term. In addition, it decreases the chances of plant damage and the need for expensive repairs or replacements.

Enhances Flavor and Aroma

Cannabis plants grown in the ideal settings will develop higher-quality buds with an enhanced flavor and aroma. In addition, a dehumidifier helps maintain perfect humidity levels for optimal cannabis growth.

For cannabis growers in a cannabis grow tent, controlling humidity in a tent or small space can be challenging. Here are a dozen factors to consider when choosing a dehumidifier for your cannabis grow tent.

Factors to Consider When Choosing a Dehumidifier for Grow Tent

Tent Size

The first important factor to consider when choosing a dehumidifier is the size of your tent. Choosing a dehumidifier that can cover and handle the dimensions of the space you are using is crucial.

Humidity Level

Monitoring your humidity levels is also essential to determine the dehumidifier you need. Assess whether you require a permanent or temporary dehumidifier. Keeping the dehumidifier running continuously may be necessary if you reside in a humid area.

Temperature Tolerance

Some dehumidifiers cannot tolerate high temperatures. Check the specifications of your chosen dehumidifier to ensure it can handle your grow tent's temperature.

Power Consumption

According to the size of your grow tent, your dehumidifier will consume electricity. Therefore, consider its power dissipation to avoid overloading the circuit.

Store Water

One of the main benefits of a dehumidifier is its ability to extract moisture from the air. Depending on your needs or personal preference, you can use a dehumidifier with an integrated water tank or a dehumidifier that drains directly into the waste pipe.

Noise Level

Having minimal noise during operation is an option for most growers. It's a noisy device, after all; it can disturb your sleep or the growth of your plants.


The quantity of moisture a dehumidifier can remove from the air within a specific timeframe is crucial. Opt for a dehumidifier with an appropriate capacity for the size of your tent.

Energy Consumption

Search for an energy-efficient dehumidifier to avoid high electricity costs.


Dehumidifiers come in a wide range of prices, cheap or expensive depending on your budget. Remember that most quality dehumidifiers may be costly, but they will save you money in the long run compared to cheaper ones.

Brand Reliability

Choose a reliable brand of dehumidifier.

Easy to Maintain

Your dehumidifier needs regular maintenance to keep it running efficiently. Easy-to-operate and install equipment makes maintenance and post-management easier for you. Keep this factor in mind when choosing a dehumidifier.

Additional Features

Some dehumidifiers go beyond the primary function of humidity control. For example, some models have an air filter to remove impurities from the air. Others have built-in hygrostats that automatically adjust humidity levels. Consider the added features that come with a dehumidifier to make your growing experience easier.

With the right dehumidifier, you will create the right environment for plants to thrive and achieve higher yields.

4 Top Dehumidifiers for Grow Tents on the Market

Now that we know what a dehumidifier is and what to consider when choosing one, let’s dive right in to some of the best grow tent dehumidifiers on the market.

hOmeLabs 4,500 Sq. Ft Energy Star Dehumidifier

The hOmeLabs 4,500 Sq. Ft Energy Star Dehumidifier is a top-rated option for growing tents. The hOmeLabs Dehumidifier can extract up to 22 pints of water from the atmosphere, making it a suitable choice for medium-sized spaces.

What sets this dehumidifier apart is its sleek and stylish appearance. In contrast to traditional bulky models, this unit complements any contemporary home setting! It is designed with portability and includes a handle and wheels for effortless movement.

This versatile dehumidifier is perfect for your grow tent and can be seamlessly integrated into your living room or bedroom, ensuring a perfect fit! In addition, this dehumidifier comes with touchscreen controls.

It's also straightforward to use. It runs on a 24-hour cycle and automatically shuts off when complete. For growers needing more time to empty the water every 24 hours, there is also the option to automate the process with a drain hose.

Another bonus of owning this dehumidifier is that it also purifies the air! A dehumidifier also keeps the air clean by removing allergens, odors, and pollen. This home lab's dehumidifier has a "Turbo Mode" that increases the fan speed if the grower desires.

Its sleek design and quiet operation make it a great addition to any grow tent setup.

Vremi 1,500 Sq. Ft. Dehumidifier

The Vremi 1,500 Sq. Ft. dehumidifier is another outstanding option for smaller grow tents. It can extract up to 22 pints of moisture daily and is designed for areas up to 1,500 square feet.

Additionally, it features a built-in turbo mode for rapid dehumidification and an automatic shut-off function when the water tank is full. It's compact dimensions and quiet performance make it a widely preferred choice among growers.

Frigidaire 70-Pint Dehumidifier

The Frigidaire 70 Pint Dehumidifier is the first choice for large grow tents. It can dehumidify to 70 pints of moisture per day. It also has a built-in humidity sensor set to a specific humidity level for optimal control. In addition, it is energy-efficient design and quiet operation make it a popular choice for growers.

This device's first and most striking feature is its ability to operate. Almost anyone can easily use this dehumidifier. In addition, this dehumidifier has equipped with a control dial and dual indicator lights, allowing you to customize the humidity reduction level. In contrast, the lights inform you when the device is running and when its water tank is full.

Excessive humidity can often lead to the growth of bacteria and mold, particularly on moisture-prone surfaces. This dehumidifier ensures that such issues are prevented.

For users who wish to enable non-stop operation, the dehumidifier can be connected to a drainage system to dispose of excess water. An automatic shut-off function is activated when the water tank reaches its maximum capacity.

TOSOT 50 Pint with Internal Pump Dehumidifier

The TOSOT 50 Pint with Internal Pump Dehumidifier is a top-rated option for larger grow tents. It can dehumidify 50 pints of moisture daily and is designed for spaces up to 4,500 square feet.

In addition, the internal pump allows for continuous drainage, making it a convenient option for growers who don't want to empty the water tank manually. It also has a built-in humidistat and automatic shut-off feature for convenience and safety.

After choosing the right dehumidifier for your grow tent, how to use the dehumidifier in the tent also needs attention.

Best Practices for Using a Dehumidifier in a Cannabis Grow Tent

1. Monitor Relative Humidity Levels – Utilize a hygrometer to keep track of relative humidity levels within your grow tent. This information will help you decide how long to run the dehumidifier and whether any adjustments to the settings are necessary.

2. Stay on Top of Maintenance – Regularly clean and maintain your dehumidifier to ensure it operates efficiently.

3. Placement of the Dehumidifier - place the dehumidifier where the air circulation of the entire tent is even.

4. Set and Forget – After determining the appropriate settings for your tent size and relative humidity level, leaving the dehumidifier running continuously is best.


A dehumidifier is a vital tool for cannabis cultivators. It maintains plant health, prevents diseases, and enhances plant yield and potency. Investing in a dehumidifier for your grow tent is a simple step with a significant return on investment.

Make sure to select the right-sized dehumidifier that corresponds with your grow tent's dimensions, ensuring optimal performance in your indoor garden.


1.Do dehumidifiers work in grow tents?

Yes, dehumidifiers work in grow tents. They are often used to control humidity levels, especially during the flowering stage of cannabis.

2.How big of a dehumidifier do I need for a grow tent?

The size of the dehumidifier for your grow tent depends on the tent's size, the number of plants, and the local climate. Consult the manufacturer's guidelines for specific recommendations.

3.What kind of dehumidifier do I need for my grow tent?

For a grow tent, you'd need a portable dehumidifier that can handle the size of your tent. It should have a built-in hygrometer for accurate humidity control.

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