Cannabis is one of the world’s most used plants for medicinal & addiction purposes. It is estimated the legal & illicit market of cannabis worth more than $340 billion.

If you are one of the farmers of cannabis ( marijuana, hemp, etc. ), then you know that the biggest hurdle in growing cannabis is unchecked humidity. Above than needed humidity causes the growth of fungus & other diseases and spoils the whole crop. Do not worry.

In this article, we give you a solution on how to keep humidity within the ideal range by using an indoor grow room dehumidifier to prevent diseases and get a good yield for huge profits.

And that’s not all; we will also guide you on which is the best grow room dehumidifier for cannabis, desiccant or compressor, standing or ceiling, large or small size, and much more.

So, let us get started right away without wasting any more time.

What is Humidity & where does it come from?

“Humidity is the moisture  ( water vapors ) in the atmosphere ( air ).”

In a greenhouse, the amount of humidity lowers or rises in 3 ways;

• The excess watering makes the soil humid, which **** evaporates more water and increases air moisture levels.
• Transpiration always raises the humidity level & is the main factor. ( A process in which plants evaporate water into the atmosphere through stomata on leaves. )
• Proper Ventilation is good for plants, but when fresh air enters the greenhouse from the outside, it also gets moisture with it. But, if outside air has less humidity than greenhouse air, it will lower moisture levels in the greenhouse. But if the outside air has more humidity, it will raise greenhouse humidity.

Why is too much Humidity Bad for Cannabis?

Humidity has a massive impact on any plant growth, including cannabis. Humidity below or ideal range will cause many harmful effects on plants.

1. High-Humidity Effects on Cannabis
2. Low Humidity Effects on Cannabis

a) High-Humidity Effects on Cannabis

Humidity has a massive impact on any plant growth, including Cannabis. Humidity below or ideal range will cause many harmful effects on plants.

And when the temperature drops, the water vapors condense on cool spots, including plants & buds. Excess water cause fungal & other disease growth, such as botrytis, bud rot, white powdery mildew, Alternaria, and downy mildew, etc.

Every fungal disease eats away the plant from the inside and turns it into a powdery form. And finally, it rips open the plant from the inside to release spores that affect nearby plants.

If not controlled, the diseases can cause;

• Lowers the yield.
• Make plants weak & less immune to other diseases.
• A lot of money will be spent on fungicides & pesticides.
• The dry weight of the damaged plants will be much less.
• Destroy the whole crop inside the greenhouse if not controlled.

“Overall, you can say that High-Humidity damages the plants & you will have to suffer huge losses of time & money.”

b) Low Humidity Effects on Cannabis

This is the problem in cold areas and during winters, where the water does not evaporate due to low temperature. Also, the air can not hold water vapors, so the relative humidity falls below 35%. Less humidity than required also causes many problems for plants, such as;

• The plants do not grow efficiently; mostly, they will get dry and rot away.
• Less overall yield & profits.
• Less immune to diseases.

Benefits of using a Dehumidifier for Cannabis Growth

Before discussing the benefits of using grow room Dehumidifiers for humidity control, let us first tell you about Cannabis humidity needs at its different life stages;

Why Use a Dehumidifier for Cannabis Growth?

The use of a Dehumidifier is necessary for Cannabis growth 3-main reasons;

• To control Humidity within the ideal range to avoid diseases.
• Second, cannabis needs different humidity levels at various life cycles, which is impossible to maintain without a dehumidification system.
• If you don’t use a dehumidifier, the excess moisture will cause fungal & other growth, so you will need to use fungicides. But as cannabis is used for medical purposes, the use of chemicals is prohibited by many countries. In that case, a dehumidifier becomes the only solution to avoid diseases.

Benefits

If you use a Dehumidifier for managing humidity, you will get the following benefits;

• ****High Volume yield of Dry Weight Flowers & Plants.
• Save extra expenses on additional fungicides and pesticides.
• In Indoor growing, constant Climate makes plants healthy and immune to other pests & diseases.
• Filters in Dehumidifiers can be designed to trap Bacteria, Spores, etc., and let out pure air in the greenhouse.
• ****No free water in moisture or on plants anymore, which decreases the chances of fungal & other disease growth.
• ****Dehumidifiers also come with temperature control functions, so you may not need extra cooling or heating systems.

“Overall, Fewer expenses & more yield will get you Huge profits.”

How to Choose the Best Dehumidifier for your Greenhouse?

Now, you know how beneficial a Dehumidifier is for your Cannabis High-Volume yield. If you have any doubts before, they will be clear now, and you will now be fully interested in buying a Dehumidifier, but you do not know which one to choose. Do not worry.

You can focus on the following 4-factors for determining the best dehumidifier for yourself;

1. Size of Area
2. Number of Plants
3. Standing Vs. Ceiling Dehumidifier
4. Desiccant Vs. Compressor Dehumidifier

Size of Area

How much & how many dehumidifiers you need dramatically depends upon the square meters of your building. For example;

• If you have a square room of small size, then a medium size dehumidifier will do.
• But if you have a large area or your room is less wide & longer, just like a hallway, you will need multiple units for proper air distribution.

When purchasing a dehumidifier, read the specification very carefully. The Capacity will be mostly written in Liters per day ( L / D ) or cubic meters per hour ( CMH ). Finally, compare it with your greenhouse area.

If you do not know such details, you can ask the salesperson, who will guide you properly.

Number of Plants

“The more plants you have, the more water will transpire from them & more humidity levels will rise.”

It should be noted by the number of plants; we mean the Relative leaf Index value. Because transpiration mostly occurs from the leaf, not the main body, so leaves are the main agents of moisture in the air.

If your cannabis crop has a small row-row & plant-plant distance, then you will need more dehumidifiers or a big dehumidifier.

Standing Vs. Ceiling Dehumidifier

Another critical factor in choosing a dehumidifier is the Installation mechanism;

• Standing Dehumidifiers, as the name suggests, are put on the ground. They are best if you have an excess of ground space. Because, in a greenhouse, every inch of the area matters, especially if you are installing a lot of dehumidifiers.
• Ceiling Dehumidifiers are installed in the ceiling, mainly in the duct system. They also function as same as Standing dehumidifiers & they do not have any ground space, which is a huge plus point. However, if you need a duct system, and you do not have any, then installing a new one will add extra costs.

Desiccant Vs. Compressor Dehumidifier

In Dehumidifier technology, 2-kinds of our most famous; Desiccant & Compressor ones. Both of these have their advantages & disadvantages, but for Cannabis farming, desiccants are the best. But let us shortly explain both of these;

• Compressor Dehumidifier: These work on the same principle, just like a Home Air Conditioner. Moist air passes through Cool Coil Tubes, which condense the water in the air and store it in a water tank, while dry air leaves the dehumidifier.
• Desiccant Dehumidifier: In these, the humid Air of a grow room passes through a moisture-absorbing sheet and becomes dry. Then the absorbed moisture is vented into the outside with the help of heated air.

The main reasons why Desiccant Dehumidifiers are better than Compressor ones are;

• Desiccant dehumidifiers are almost half heavy as compressor ones.
• ****Desiccant Dehumidifiers produce less noise than the quietest compressor ones.
• Compressor Dehumidifiers can easily catch fire, while desiccant ones are relatively safe.
• Desiccant Dehumidifiers do not need any cooling system, so their electric consumption is way less.
• Another benefit of Desiccant dehumidifiers is they are easy to repair due to their simple components.
• The desiccant Filter sheet act as a Bacteria, Spores, and other diseases trap and make the air fresh. At the same time, Compressor dehumidifiers do not have such a benefit.
• In Desiccant dehumidifies, a heating mechanism is used to blow the excess moisture outside. So they also release some heat in the greenhouse, which is suitable for Cannabis that likes warm temperatures. While Compress dehumidifies and works on a cooling system, they lower the temperature slightly.

What are the Disadvantages of a Dehumidifier?

Just like anything, if you choose to use a Dehumidifier, then you will have to face some demerits too, like;

• They make some noises.
• Needs regular maintenance.
• The dehumidifier runs on electricity, so you will get huge bills monthly.
• They are pretty expensive and can have a considerable impact on your budget during buying.

“Despite these demerits, you will get disease free & high volume harvest every year. Your initial costs & electricity bill will be covered. But if you don’t use a dehumidifier, you will probably end up in a huge loss every year.”

FAQs

1. Can a dehumidifier grow mold?

Yes, if you do not clean your dehumidifier, then the fungus or mold can grow inside it. Moreover,  when air passes through it, the air can get filled with spores and become a source of disease in plants.

So, it is essential to clean the dehumidifier regularly.

2. Should you run your dehumidifier all the time?

Yes, if you are doing cannabis farming, you must keep the dehumidifier on 24/7. But it is to be noted that;

• When a specific humidity range is reached, it will automatically turn off. This means it will not be on all the time, saving many electricity bills.
• When humidity rises above the set limit, it will turn on again and keeps the humidity within a specific range to enhance plant growth.

3. Can you adjust humidity levels on a dehumidifier?

Yes, on most dehumidifiers, you can set the humidity level anywhere between 5% RH to 99% RH.

Conclusion

If you are looking to buy Cannabis Dehumidifiers for small & large-scale grow rooms, then we, YOTREE®, can be the one-stop solution for you. With 50+ Skilled workers & 6000 square meters state of the Art factory, we make more than 72,000 units of dehumidifiers annually.

We can provide you with specially designed Dehumidifiers for Cannabis & other plant growth. And you can choose both in Standing and Ceiling Installation options.

YOTREE® Dehumidifiers have a superior humidity detection system and better distribution of air. Our products are budget-friendly and can be used for houses, commercial and industrial applications.