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How to Increase Humidity in Grow Tent

How to Increase Humidity in Grow Tent

The air holds a certain amount of water vapor also known as humidity, which is vital for the growth of marijuana and all other crops. Measured as relative humidity, it is the percentage of the maximum amount of vapor in the air held at the current temperature. The air holds more humidity when the temperatures are higher than when they are low. MARIJUANA just like any other crops needs the correct humidity levels in order to grow well. It is therefore important to make sure that your GROW TENT has the correct humidity levels at all times.

People venturing into marijuana growing for the first time have problems increasing the humidity levers in their grow rooms and grow tents. This leads to poor growth of their crops, which in turn leads to low quality and minimal yields. What some of these new growers fail to realize is that cannabis thrives better in high humidity than in low humidity. This is so especially when weed is on the growing and flowering phases. Others may not be aware that they can measure the amount of humidity in the grow tent and let nature take its course.

The best way to monitor the humidity levels in the grow tent is by using a hygrometer, which comes with an inbuilt thermometer and a hygrometer. From here, you can follow the guidelines provided below to know HOW TO INCREASE HUMIDITY IN A GROW TENT.

Methods of increasing humidity in the grow tent


A dehumidifier works in the same way an air conditioner works. It contains a cooling element where air passes through condensing the moisture in the grow tent into an inbuilt reservoir. It then passes the air over a heating system that warms it up a second time. The air then moves to a radiator located outside the humidifier. Majority of grow tent humidifiers are easily portable as they come with small wheels. Below is one of the best humidifiers in the market that does well in increasing humidity levels in a grow tent.

Our Top Pick of the Best Humidifier

AIRCARE MA 1201 Whole-House Console Evaporative Humidifier

AIRCARE MA 1201 Whole-House Console Evaporative Humidifier

Maintaining proper humidity levels is crucial for marijuana and one of the best was to increase the levels is by using a humidifier. When we talk about a humidifier, we do not mean just any other humidifier in the market but the best, which is AIRCARE Console Evaporative Humidifier. The humidifier has a single bottle design that will complement your grow room. If your grow tent has low humidity levels, this product helps to add invisible moisture to the grow tent by moving the dry air in the room through a saturated wick filter.

The humidifier covers an area of 3,600 sqft. And can run uninterrupted for 36 hours. It has a 3.6-gallon tan capacity, a digital display where you can monitor the humidity levels, auto mode f fan speeds, a refill and check filter indicator, an auto shut after attaining the required humidity levels and customizable humidity settings. For easy mobility, the product has casters and it is ETL approved. It is manufactured in the USA and easy to clean. For further ease of use, the humidifier comes with a user manual provided in PDF format.

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Other methods of increasing humidity in a grow tent

Put wet towels in the grow tent

For the absorption of moisture into the air, you can provide a large surface area by hanging wet towels in your grow tent.

Put other larger plants in the grow tent

As counter intuitive as this action may seem, it does help to put q few large plants in your grow tent together with your marijuana. This will help in humidity increase as large plants unlike shorter plants, transpire more thus producing more relative humidity.

Spray the grow rent with water

This is one of the cheapest methods of keeping the humidity levels high in the grow tent. By using a simple sprayer, spray water inside the whole grow tent in the mornings and evenings. Also, spray all the walls inside the tent to increase the humidity levels.

Use a fan and water

Another cheap method you can use to increase humidity in the grow tent is use a fan and let it blow across a broad surface of water to keep the humidity levels high.

Relative humidity levels change throughout the growing stages of the marijuana plants. The levels also depend on the kind of strain you are growing in the grow tent and the phase of the cycle of growth. The levels can range from anything between 40% and 95% for clones. To avoid any problems like mold that attacks the crops during the flowering phase, it is important to lower the levels every week during every stage of the growth cycle.

Wrapping it up

As simple as it may seem, controlling humidity levels in a grow tent for marijuana is not that easy. You need dedication and to keep up with the changes in temperature levels. With the right products, you can however keep humidity at the allowed levels throughout the growth cycle of the weed. We hope this article was of help and you will optimize your grow tents growing conditions to maximize your marijuana yields.

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