The advantages of using a dehumidifier in your grow tent Complete Guide

Updated on May 22, 2023 by Gregory Morris

Are you concerned about the humidity levels in your grow tent, impacting the quality of your crops? Find out how a dehumidifier can help you solve this issue and get the best results from your garden!

You’re just one step away from perfecting your environment – read on to learn more!

Many growers turn to dehumidifiers when they find their indoor gardens are producing fruit or vegetables with mildew or mushrooms. A dehumidifier is a great tool that can help manage the humidity in your grow space, and make it much easier to keep your plants healthy and thriving. But, there’s a lot more to this important piece of equipment than meets the eye. In this guide, we’ll examine all of the essential aspects of using a dehumidifier in a grow tent, from how it works and how to choose the right size for your needs, down to our top recommendations for specific models on the market today.

Whether you’re just starting out with indoor gardening, or you’re looking for ways to improve your current setup and take it up a notch, read on to learn more about how dehumidifiers can be beneficial for any grow space large or small!

Definition of a grow tent

A grow tent is a framed and covered structure-like room that is used by hobbyists and growers to cultivate small areas of vegetation indoors. A grow tent typically has thick canvas-like walls that are lined with reflective materials and feature sealed entrances for climate control. The walls are also outfitted with openings for ventilation as well as ports for wiring and power outlets.

To keep the environment inside conducive for healthy growth, a dehumidifier can be used to reduce excessive humidity levels. In this article, we will discuss the advantages of using a dehumidifier in your grow tent.

Importance of controlling humidity in a grow tent

The importance of controlling humidity when growing plants indoors in a grow tent can be underestimated. A suitable humidity level is essential to optimising growth and preventing plant diseases, especially those that thrive in high humidity environments, such as root rot and powdery mildew. Humid conditions will also hinder the growth rate of plants, so ensuring the right balance is crucial for successful grow tent gardening.

Using a dehumidifier in your grow tent can help reduce the overall humidity level and create an atmosphere where your plants can thrive. High-quality dehumidifiers are designed to absorb moisture from the air and maintain suitable levels for indoor gardening. Not only will this improve conditions for healthy plant growth, it prevents mould spores from germinating which can create unhealthy airborne particles that are hazardous to human health. By using a dehumidifier you can be sure that all moist air is removed before it becomes a problem, meaning healthier plants and air quality indoors!

Benefits of using a dehumidifier in your grow tent

Using a dehumidifier in a grow tent provides several benefits to your plants. For one, it helps keep humidity levels in check which is essential for healthy growth. The right amount of humidity helps the roots absorb water and nutrients better, and this in turn produces bigger yields with higher quality flowers or fruits.

It also helps prevent mold or mildew from taking hold in moist, enclosed environments. This can ultimately help protect your plants from pests and diseases that thrive in these types of conditions.

Lastly, running a dehumidifier also ensures that there are lower concentrations of volatile organic compounds (VOCs) which could be damaging to both plants and humans if not managed properly.

Prevention of mold and mildew growth

The use of a dehumidifier in your grow tent can help to reduce the likelihood that mold and mildew will form. Mold and mildew are common problems in grow tents due to the high humidity levels which can make plants more prone to root rot and secondary infections. A dehumidifier helps to keep humidity at an optimal level which reduces the risk of mold and mildew growth, as well as helping to prevent bacterial and fungal diseases from taking hold.

It is important to keep in mind that not all dehumidifiers are suitable for grow tents, so it is best to research the product first before purchasing. When choosing a dehumidifier for a grow tent, some factors should be taken into consideration such as noise level, size of the unit, power consumption, timer settings and whether or not it has a self-draining option for when you don’t have access to an external power source or drainage outlet.

When using a dehumidifier in your grow tent it is important to make sure it is correctly installed and set up correctly using the manufacturer’s instructions. You should also regularly check on it and adjust its settings depending on your specific needs or preferences. For example if you find that your air is too humid then you may need to increase the setting on your dehumidifier whereas if you find that there is too much moisture in the air then you should reduce its setting accordingly.

Finally, it is important that any water collected by your dehumidifier is frequently changed so that bacteria does not proliferate within its reservoir; this will help ensure optimal performance from your device while avoiding any unwanted diseases entering into your grow tent space.Best Dehumidifiers for Grow Tent in 2022

Improvement of plant growth and yield

Using a dehumidifier in a grow tent can have incredible benefits for your plants. A dehumidifier will remove excess moisture from the air, which, combined with adequate ventilation, can help provide your plants with an optimal growing environment.

Plants need humidity to stay healthy and thrive but too much humidity leads to issues such as root rot and mold. By having better moisture control in your grow tent, you can protect against these problems, resulting in improved plant growth and yield.

Dehumidifiers also prevent the accumulation of dust and other particles on the leaves of your plants. This helps to keep them free from harmful pathogens that could stunt their growth or cause damage. Additionally, by creating a drier environment within the grow tent you reduce the risk of odors caused by bacterial activity in humid conditions.

Overall, using a dehumidifier in your grow tent will provide many positive impacts towards ensuring successful plant growth and yield.

Prevention of pests and diseases

Using a dehumidifier in a grow tent is key to preventing infestations of molds, bacteria, pests, and diseases. High moisture or humid levels in enclosed spaces can lead to an environment that is hospitable for the growth of various organisms.

A dehumidifier helps maintain the optimal level of humidity in your plant’s environment by preventing your grow tent from getting too damp. This reduces the risk of fungal diseases such as powdery mildew, damping off disease and root rot that can damage the plants. Additionally, it also prevents possible pest infestations due to high levels of humidity like aphids, whiteflies and thrips.

Keeping humidity low by using a dehumidifier will not only help prevent issues with fungus or pests but also help lower your electricity bill.

Factors to consider when choosing a dehumidifier for your grow tent

Before purchasing a dehumidifier for your grow tent, you should take into account certain factors such as size, capacity, noise level, energy efficiency and cost.

Size: Depending on the size of your grow tent, you will need to purchase an appropriate sized dehumidifier. Generally, it is recommended to buy one that is larger than the size of your grow tent as it will be better able to remove moisture from the environment.

Capacity: The capacity of a dehumidifier is measured in liters per day (LPD) and indicates how much moisture the device can remove from the air in that amount of time. Be sure to buy a device with an appropriate LPD rating for your space and consider buying one with adjustable settings so that you can fine-tune the performance as needed.

Noise Level: One factor many growers overlook when choosing their dehumidifier is its noise level. A noisy device can be disruptive and make it difficult for you to sleep or concentrate on other activities near the grow tent. Look for dehumidifiers with low noise levels when making your purchase decision.

Energy Efficiency: Not only does using an energy efficient model help cut down on operational costs, but it also helps protect our environment by reducing greenhouse gas emissions produced by electricity production plants. Look for appliances that have certifications like Energy Star and confirm its energy rating before making a purchase decision – this will help ensure that you get optimal performance at minimum running costs through reduced electricity consumption over time.

Cost: Lastly, consider your budget when researching which dehumidifier to buy – there are models available at every price point so you don’t have to settle for something beyond what meets your criteria or financial situation! Be sure to evaluate all cost-related factors including initial price as well as any necessary maintenance fees, repair costs or replacement parts before making a final selection.Grow room dehumidifiers: Perfect your setup


Size of the grow tent

A dehumidifier is an essential piece of equipment for a grow tent and can be used to reduce the overall moisture levels and keep your grow tent in the best condition possible. In order to find the right size of dehumidifier, you need to factor in the size and type of space, as well as its overall humidity level. For example, a small bathroom easily accommodates a 20-pint dehumidifier while a large basement needs up to 70 pints. You also need to consider the climate control provided by your grow tent; if your setup offers sufficient ventilation, then your need for humidity control is reduced.

When choosing which size dehumidifier is right for you, it’s important to remember that larger humidifiers require more energy than smaller ones and may not be suitable for spaces with power limitations. If you’re working with a particularly small grow tent then you may even want to opt for an ultra-compact energy saving model like Honeywell’s DH45X2 Extreme Densted Dehumidifier which will help save on energy consumption whilst also providing ideal climate control throughout your indoor growing space.

The size of fancoil units can also be determined in order for them provide enough capacity for any given tent space — sizing should be based on cubic meters per hour so it is advised that one takes full measurements before making an investment.

Ultimately when deciding what size dehumidifier is right for you, just remember that bigger isn’t always better; getting one with too much capacity could result in over-dehydrated plants due to inefficient air circulation and ineffective distributed heat transfer.

Desired humidity level

In order to ensure healthy growth and maximum yields, it is important to establish and maintain the desired humidity level in your grow tent. This is the range of humidity at which plants can best perform photosynthesis, transpiration, and respiration activities. Generally, the optimum range for cannabis growth is between 55% – 70%. However, higher levels of humidity can lead to increased vulnerability to fungal and mold infections while lower levels will inhibit growth and limit nutrient absorption by the plant’s roots.

Dehumidifiers are electronic devices designed to remove moisture from the air in a closed environment. By properly setting up and running a dehumidifier in your grow tent, you will be able to precisely control and monitor the temperature, RH (Relative Humidity), and EP (electrical pressure) within your tent for optimal yield.

A typical dehumidifier consists of a fan motor that sucks air into its condenser chamber located inside the unit where heat is injected as part of a dehumidifying process that removes excess moisture from the air before being discharged from its exhaust port back into your tent’s environment. In addition to positively adjusting the ambient environment through precise temperature control, running a dehumidifier prevents stagnant water vapor droplets pooling on leaves or other surfaces which can further lead to ideal breeding grounds for fungal outbreaks like powdery mildew or root rot.

Water removal capacity

When you are using a dehumidifier in your grow tent, one of the most important things to consider is its water removal capacity. The amount of water removed per day will depend on a few factors, firstly, how large area the unit needs to cover, followed by the level of humidity you need to bring down. Check both these factors before you purchase your unit.

The size of the area covers means it can handle will play an important role when buying a dehumidifier for your grow tent, as typically it will indicate its overall power and efficiency. Additionally, remember that some dehumidifiers may require frequent emptying and may have limited tank sizes compared to others. Do some research on the specific product before purchasing to see which one fits your growing needs and space best.

The amount of moisture that needs to be removed also affects the size and type of dehumidifier that should be chosen for installation in a grow room or tent. A typical crawl space or basement requires at least 10-20 pints (.6 – 1 gallon) per day while larger rooms require more than 20 pints (1 gallon). It is important to select one that can effectively handle this amount without overworking itself or needing constant manual drainage, while still being efficient with energy consumption and costs. Generally speaking, larger more powerful units are more advantageous when it comes to reducing humidity levels quickly in large spaces like tents than selecting small ones with limited capacities – so make sure you are aware of what type of environment you’re attempting to control humidity within before making your choice!

Noise level

When operating a dehumidifier inside a grow tent, it’s important to consider the noise level of the unit. Even with their built-in soundproofing, some dehumidifiers are more audible than others. To ensure the best performance from your system, it is important to get one that will be able to remove moisture without being too loud or intrusive.

If you happen to buy an overly noisy model, it can end up being a distraction due to its loudness and cause disruption while you’re tending to your plants. You may even end up having to move your setup somewhere else. Therefore, be sure to look for models that have built-in soundproofing features such as rubber pads and noise reducing exhaust pipes so you won’t have to worry about being annoyed by the noise levels of your grow tent dehumidifier.Dehumidifiers: Why You Need One To Grow Great Cannabis - RQS Blog


In summation, using a dehumidifier in your grow tent can significantly benefit the health and yield of your crops. It is capable of achieving the ideal humidity and temperature levels needed for productive growth, leading to larger yields and better quality harvests. Dehumidifiers protect against mold, mildew, and other pests that can ruin an indoor garden. They also lower the cost of operating lights by not wasting energy on moisture-filled air.

Additionally, dehumidifiers are relatively easy to install and maintain, making them an ideal addition for any grower looking to increase their success rate.

Is a dehumidifier good for grow tent?

Yes, a dehumidifier can be very beneficial for a grow tent as it helps to maintain the optimal humidity levels required for healthy plant growth.

Why use a dehumidifier in a grow room?

A dehumidifier is used in a grow room to reduce the amount of moisture in the air, which can help to prevent mold, mildew, and other moisture-related issues that can be harmful to plant growth.

What are the benefits of using a dehumidifier?

The benefits of using a dehumidifier in a grow room include maintaining optimal humidity levels, preventing mold and mildew growth, reducing the risk of pest infestations, improving air quality, and promoting healthy plant growth.

Do you really need a humidifier in a grow tent?

It depends on the environmental conditions in your grow tent. If the humidity levels are too low, then a humidifier may be needed to increase the moisture in the air. However, if the humidity levels are already optimal or too high, then a dehumidifier may be needed instead.

Is 60% humidity OK in grow tent?

60% humidity is generally considered to be on the high side for a grow tent. While some plants may tolerate higher humidity levels, others may be more prone to moisture-related issues. The optimal humidity level for a grow tent may vary depending on the specific plants being grown.

Is 50% humidity good in grow tent?

50% humidity can be a good humidity level for a grow tent, as it falls within the optimal range for many types of plants. However, the ideal humidity level may vary depending on the specific plants being grown.

Where is the best position for a dehumidifier in a grow tent?

The best position for a dehumidifier in a grow tent is typically near the air intake vent. This allows the dehumidifier to effectively remove moisture from the air as it enters the grow tent.

Are plants effective at dehumidifying?

Plants can help to naturally regulate humidity levels in a grow tent to some extent, as they release moisture through transpiration. However, the amount of moisture that plants can remove from the air is generally not sufficient for maintaining optimal humidity levels on its own.

What is the ideal humidity for grow tent?

The ideal humidity level for a grow tent can vary depending on the specific plants being grown. In general, most plants do well in a humidity range of 40-60%, although some plants may require higher or lower humidity levels.

Do dehumidifiers make it less humid?

Yes, dehumidifiers are designed to remove moisture from the air, which effectively makes the air less humid.

See Also:

Leave a Comment