How To Increase Humidity In Grow Tent Without Humidifier

How to Raise Humidity in Grow Room Without Humidifier?

In this article: How to Raise Humidity in a Grow Room Without Using a Humidifier 22659Views0 Humidifying a grow space without the use of a humidifier sounds nearly impossible, doesn’t it? However, we can assure you that it is not the case. In fact, we’ve discovered three straightforward DIY procedures as well as two unique tools (that won’t break the budget) that may be used to enhance humidity in a grow room. Additionally, we have sufficient evidence to vouch for the fact that they are effective.

Some are more difficult to do than “getting a humidifier and setting it up correctly.” However, we made every effort to make things as simple as possible for you.

Let’s take a big breath and plunge in-

Grow Room Ideal Humidity: What and Why?

There is no such thing as a ‘absolute’. As a result, the concept of optimal humidity changes as the plant progresses through its growth cycle. However, we can provide you with a more broad list:

  1. The following percentages are seen during cloning: 70-80%
  2. 40-60% during vegetative growth
  3. 35-55 percent during flowering
  4. 30 percent-35 percent during harvesting.

Moreover, what is the significance of maintaining humidity in this manner? See the next section for further information.

Why Ideal Humidity Is Important To Maintain?

Moreover, why is it so critical to maintain humidity in such a way? See the following section for further details.

Before We Start-

And why is it so important to regulate humidity in such a strict manner, exactly? Take a look at the next section.

DIY Tricks to Raise humidity Without Humidifier

It goes without saying that increasing the amount of water flowing throughout the grow system will cause more water to evaporate, resulting in increased humidity. Additionally, static water sources such as ice and moist sponges can be used to test this notion. And that’s exactly how we’re going to construct our homemade grow room humidifier. Please take note of the following water sources in a growing system:

Dynamic Water Sources Static Water Sources
Water trays Drip watering system Smart Pots Water Tub(wide mouth) Dump(wet) sponges Wet TowelsGallon counter

The dynamic water sources meet just a small portion of the system’s demand. You won’t be able to utilize them to transport water vapor if your system doesn’t have the capability. However, because they do not meet the needs of the system, static sources may be quite successful in this situation. As an illustration, consider the act of “dumping a dump sponge.” If you place a few wet sponges in close proximity to light sources, the heat generated by the light will evaporate the water from the sponges.


You can accomplish the same thing with the gallon counter as you do with the cup counter.

If it’s positioned in a somewhat warm location within the room, it may also serve as a humidifier.

Consequently, position them somewhere with a comfortable temperature and plenty of air circulation. Here are some suggestions to make the system more effective:

  1. Make certain that there is adequate air movement directly onto the surfaces of these water containers. It is important not to overheat the water in order for it to evaporate fast. The presence of hot vapor can cause a rapid rise in temperature
  2. Ensure that every drop of water utilized in both dynamic and static water sources is thoroughly purified. Maintain a reasonable distance between the water sources and the lights. Lighting and water sources that are too close together might cause a short circuit.

Optimize Extractor Fans for More Humidity

In a grow room or tent, fans are essential for ventilating the air in and out of the space. Because of the fresh air that is carried in by the extractor fans, the humidity level is consistently low. In fact, faster-running fans cause the air to dry faster than slower-running fans. However, there is no way to simply turn off these blowers and allow the humidity in the grow area to climb. That is complete and utter rubbish. However, you may optimize their performance and run-time by modifying their code.

  1. The use of fan controllers is a wonderful concept for optimizing the entire system.
  2. If you want to learn more about how long to keep fans running in a grow room, you can read our full guide.
  3. A good option is to reduce the number of extractor fans in the room as well.
  4. Listed below is a video that we believe is significant in this regard-

Keep The Ambient Temperature Cool

No matter if it’s a grow room or a tent, it’s possible that it has an atmosphere surrounding it. We’ll refer to it as the ‘Ambient’ environment. If it’s a tent, it might be in any number of locations including a room, closet, basement, etc. Assuming it’s only a room, then the ambient environment will be located just beyond the door. Regardless of the circumstances, the temperature of the surrounding environment has a direct impact on the temperature within the room/tent. Furthermore, as you are aware, temperature has a direct influence on humidity-

  1. High ambient temperature along with high growth temperature combined with low humidity
  2. Low ambient temperature, low grow temperature, and high humidity

The first scenario is more likely to occur during the warmer months. As a result, have a robust ventilation system running at all times to keep the room cool. If your budget allows it, you may also experiment with utilizing an air cooler or an air conditioner. Keep the doors and windows open, and allow as much natural ventilation in as you possibly can. An exception to this is when the ambient temperature of a tent is anticipated to rise to a harmful point. At that point, it doesn’t matter what time of year it is.

As a result, you must take additional precautions to ensure that the grow tent container room remains cold.

However, if you ask our honest opinion, we would advise against attempting to humidify the grow tent without a humidifier.

Products to Raise Humidity Without Humidifier

You can create a DIY humidifier grow tent at home, and we’ll show you how in this portion of the tutorial.

They’re inexpensive, they’re straightforward, and, best of all, they work!

Fine Spray Bottle/Misters

Spray bottles may significantly increase the humidity in any environment. Because grow rooms are nearly completely enclosed, this will operate much better in this environment. Currently, when it comes to grow sprayers, there are many different varieties available. Take a look at this-

Pressurized Sprayer Bottle

They are manual, and they come with a sprayer head and a container to fill with water. This container has a capacity of up to 2 liters. The ability to raise humidity in a tiny grow tentor room is beneficial. It is also within a reasonable price range because there is no electrical and only a mechanical system involved. Our top pick is as follows: Solo 418-2L Hand Sprayer (COREGEAR Ultra Cool XLS) is our budget-friendly pick.

Battery Powered Sprayer

Pumping is not required at all when using a battery-powered sprayer. It is possible to purchase a few batteries that will perform the task of spraying water into the air. With the wand (included), you may sprinkle water on particular sections of the room that you want. Usually, they are able to provide a larger container capacity as well. Pick of the Day: Sprayer with a rechargeable battery from Instapark


For grow room application, Foggers or Atomizers are the best options when it comes to delivering ultra-low volumes of mist in a controlled environment. Instead of splashing water, it will spray fog with a particle size of up to 10-46 microns. Furthermore, it will not gravitate and will provide a significant increase in the humidity level of the space. They have a capacity of up to 2-3 gallons, which we found to be plenty for even a 2020 grow room. Hudson 99599 Electric Fog Atomizer is our top pick.

Swamp/Evaporative Cooler

It is recommended that you utilize Foggers or Atomizers if you need to create a very small volume of mist for growing purposes. The fog will be as small as 10-46 microns in size, rather than water splashes. In addition, it will not gravitate, and it will provide a significant increase in the relative humidity of the space when used. They have a capacity of up to 2-3 gallons, which we discovered to be sufficient for even a 2020 grow room in our research. The Hudson 99599 Electric Fog Atomizer is our top pick for this category.

Some Tips Before We Finish

All of these efforts are made in order to ensure that the plants can adequately transpire. And this takes us to the issue of maintaining appropriate airflow through the plant canopy. This will prevent any moisture from accumulating around the plant’s leaves. If you don’t do this, your plants will never get the advantages of all of your humidification efforts around the room.

Find the Perfect Mix

As you can see, there are a variety of DIY hacks and solutions available that will allow you to boost the humidity in your grow room without the need of a dehumidifier. However, you may be able to get the perfect grow room humidity by combining one or more of these strategies. As a result, we urge that you continue to experiment with all of the tactics and products that we have described in order to discover the perfect combination for you.

Keep An Eye On The Temperature

When it comes to humidity, temperature has a very direct influence on it, and vice versa.

Consequently, if there are plenty of water sources within the space, the high temperature may cause an increase in relative humidification. However, in the case of low-cost humidification, avoid raising the grow room temperature too much. That has the potential to damage the entire crop.

FAQ(Frequently Asked Question)

Question: At what stage do plants require the highest levels of humidity? Answer: For all types of grow plants, the cloning stage is the stage during which they demand the most humidity (60-70 percent ). Is it beneficial to have a mixture of larger and smaller plants? Answer: Yes, it is correct. Because larger plants are more likely to exude more vapor around their leaves, smaller plants will be in a more humid environment as a result of their greater size. However, this will also result in discriminating between light output levels.

  • Use either a low-cost analog hygrometer or a somewhat more expensive digital humidity(and temperature) monitor to measure humidity and temperature.
  • Question: Answer: If you’re using a grow tent, all of these tactics and supplies will be effective for you.
  • I’m Saleh, and I’m a blogger that enjoys doing home improvement projects on the side.
  • The most recent posts by smsaleh (see all)

12 Ideas On How To Increase Humidity In Grow Tent

Have you noticed that your plants are pleading for water? Have you noticed that the leaves on your plant are curling upwards? Learn how to boost humidity in your grow tent or grow room if the air in your grow space is becoming too dry. Every indoor grower is aware that maintaining proper temperature and humidity levels is essential to providing your plants with a favorable environment in which to thrive. Knowledge of how to manage and enhance relative humidity in a grow tent is something that all indoor gardeners should be familiar with.

  1. However, if your grow tent is just 20 percent to 40 percent full, you must take action immediately or risk losing your plants completely.
  2. Low humidity within a grow tent causes your plant’s growth to be hindered and its development to be poor.
  3. This is why increasing the humidity in a grow tent is necessary.
  4. The strategies I’ve attempted to enhance humidity in a grow tent or grow room over the years are discussed in detail in this post, which will be a cost-effective exploration of the approaches I’ve tried.

Humidity Basics

The amount of water vapor trapped in the air is referred to as humidity. Humidity may be measured in three ways: in absolute terms, in relative terms, and in particular terms. You may also use a hygrometer to determine the humidity level, which should be one of your gardening closest friends. Because we are interested in indoor gardening, we pay particular attention to relative humidity. The relative humidity (RH) of the air is measured in relation to the maximum quantity of water that may be kept in the air at a given temperature.

Plants may flourish at a variety of relative humidity levels, but the temperature in your grow tent would be the determining factor. It’s important to remember that the warmer the air, the more water vapor it may contain.

Consequences of Low Humidity in a Grow Tent

Now it’s time to go over some broad science! Water is used by plants to keep them cool. Their roots, which are connected to the plant’s vascular structure, absorb a lot of water, with around 95 percent of it flowing to the roots and subsequently escaping through the stomata. Only roughly 5% of the budget is allocated to the creation of additional cells. As a result of the high temperatures and dry air, there is a significant vapor pressure deficit between the leaves of your plants and the surrounding environment.

As a result, your plants are exposed to the dry conditions of the outside environment.

Growing plants become stressed as a result of the additional pressure they place on their roots in order to suck up water and compensate for a lack of humidity.

Lower levels of humidity encourage the roots to take in excessive amounts of water, which contains surplus nutrients that can burn the tips of the leaves when they are exposed to direct sunlight.

Importance of High Humidity in a Grow Tent

High humidity may appear to be a daunting prospect for inexperienced gardeners. Take it from a group of seasoned indoor gardeners. As grow tent users, we’ve seen firsthand how high humidity levels, particularly during the growth period, may be really advantageous. Basically, exposing your developing plants to relatively high humidity aids in the absorption of water by the plants, which is essential for their survival. Plants absorb water through their roots, but they may also be able to obtain additional water through their leaves and stems.

See also:  How Do You Wash A Tent

If there is little to no humidity, plants will not have the opportunity to get enough water for their full development and growth.

Things to Review

Keep in mind that relative humidity should not be lower than 20 percent and must not be more than 75 percent. If you have a 44 grow tent, you will most likely need to maintain at least 40% humidity, however a 55 grow tent may require as much as 65 percent humidity to thrive.

The Best Temperatures for an Indoor Grow Room or grow tent

As I previously stated, the ideal grow tent temperature changes depending on the period of plant life in which it is used. Temperature and humidity go hand in hand in a grow tent. It is natural for indoor gardeners to invest in a digital thermometer and hygrometer to assist them keep track of readings.

  • Clones or seedlings like temperatures between 74 and 78 degrees Fahrenheit
  • Vegetable plants prefer temperatures between 70 and 78 degrees Fahrenheit
  • And flowering plants prefer temperatures between 88 and 75 degrees Fahrenheit. The harvesting process usually necessitates temperatures between 65 and 74 degrees Fahrenheit.

What Is The Right Humidity Level?

Plants require varied degrees of humidity at different times of their lives, just as they do at different temperatures.

  • When clones or seedlings are growing, they require 70 percent to 75 percent humidity since this is the time when their root systems are developing. You may do this by utilizing propagation trays or humidity domes to provide enough of moisture in the air for your young plants to grow in. Maintaining high amounts of humidity will enhance the likelihood of your clones successfully rooting
  • Vegetable plants require 50 percent to 70 percent humidity since their roots have already begun to grow. They do, however, require the assistance of leaves in order to absorb moisture. Low humidity levels might cause development to be more sluggish. For flowering plants to grow in a pleasant atmosphere, they require 40 percent to 50 percent humidity on a consistent basis. It is possible to prevent mildews or molds from growing at this period by keeping a significantly lower humidity level
  • Humidity levels of 45 to 50 percent are normally required while harvesting in a grow tent in order to avoid your crop becoming harsh and brittle.

How Grow Tents and Relative Humidity Can Help You Grow Plants

The use of a grow tent in conjunction with a climate controller allows you to exert greater control over your plant’s growth environment. Not to mention that it will assist you in controlling the lighting cycles. Furthermore, in a grow tent with a modest air volume, it is easy to raise or increase relative humidity levels. A grow tent enables you to care for a variety of plant species throughout the year, regardless of the season, weather conditions, or climatic zone in which you are located.

Your grow tent will assist you in keeping potentially dangerous factors such as insects, mildew, mold, and parasites from causing harm to your plants and stopping them from growing.

This is why you should be familiar with the many methods of increasing the relative humidity in your grow room or grow tent.

12 Easy Ways on How to Increase Humidity in Grow Tent

It is a widely held belief that bigger plants would suffocate smaller ones by consuming their light, nutrients, and oxygen. On the contrary, as you begin to add plants to a grow tent, especially large ones, the relative humidity will rise as a result of the increased respiration and production of relative humidity. Carbon dioxide and water vapor are released by your larger plants during their respiration, which helps them to nourish their smaller ones. Larger plants have larger leaves and more stomata, which means they may expel more water vapor following evapotranspiration than smaller plants.

The goal is to avoid overcrowding the larger plants in order to guarantee that all of your growing plants receive an equal amount of air, light, and nutrients.

2. Use a Humidifier inside grow room

Investing in a humidifier has proven to be one of the finest decisions I’ve ever made. A humidifier helps to maintain high humidity levels in a grow tent by extracting a cold mist, which is essential for the development of your growing plants as they expand. Increase the moisture level of your humidifier to at least 50 percent to 65 percent, depending on the size of your grow tent. The humidifier should be placed on the bottom level of your grow tent if your grow tent has a top and bottom shelf.

However, I must caution you that leaving your humidifier running at maximum capacity in a restricted place may result in an excessive amount of moisture in the air.

I strongly advise purchasing a humidifier that has the capacity to hold at least six gallons of water at a time and has a lengthy operating life span.

The finest humidifier for your grow tent will assist you in controlling the temperature, ventilation, and moisture output of your growing environment.

3. Make Use of Propagators

Seedlings can germinate on their own in certain cases, but increasing the humidity in your grow tent with propagators can increase the likelihood of success in your plant growing endeavors significantly. Keep an eye out for how indoor gardeners safeguard their seedlings and cuttings in propagation trays and containers. Preventing the seeds from drying out can be accomplished by using propagators such as this covered propagator with a polyethylene or glass cover sheet. They have the ability to maintain high humidity levels in your grow tent, guaranteeing that your seedlings’ root systems are not stressed during the development and growth process.

4. Build your own propagation set-up

Here’s an example of an experiment that was successful for me. An adjustable extractor with a built-in thermostat that regulates the temperature by sucking in the air has been purchased for my home. I then poured a pail of water on top of my grow tent to keep it from drying out. A hosepipe is used to transfer the water into the humidifier. Suitable for both seedlings and cuttings, this procedure is simple and effective. Because it extracts a cool-mist from within the grow tent, the humidifier will help to increase relative humidity in the growing environment.

5. Hang a wet towel or set trays of water near passive air holes

Hanging a wet towel or putting a pan of water near air intakes is an apparent solution that will mist your walls and enhance the humidity level in your home. This enables for a significant amount of moisture to be absorbed into the air as a result. A towel, on the other hand, has a tendency to dry quickly and will require you to rewet it from time to time. In addition, a pot or pan of water will not necessarily produce the required relative humidity level for your environment.

6. Remove Half of Your Fluorescent Lights

Unfortunately, the most obvious answers are often the ones that are neglected. By deleting half of your fluorescent bulbs, you can lower the temperature in your home. Don’t be concerned about the strength of the light because your tiny plants don’t require much light at this point. Ventilating a grow tent is essential since it may assist you in managing or controlling the relative humidity of your plants’ environment. A properly ventilated grow tent ensures that air is exchanged both in and out of the tent during the growing process.

You can prevent hazardous germs such as fungus and bacteria from growing or surviving inside your tent as a consequence of sufficient air circulation in your tent.

Using high-speed fans will cause the air to dry up more quickly than usual, so proceed with caution.

Consequently, moisture is kept away from the plants, which can prevent dehydration and desiccation from occurring in the plant.

You may also experiment with lowering the number of fans in your grow tent in order to boost the humidity level. I recommend that you set the fans to 60% of their maximum power in order to maintain relative humidity.

8. Make use of water spray bottle

Growers are often equipped with spray bottles, so this should not pose an issue. Another simple approach is to spray water on the walls of your grow tent every morning and evening, which will keep your plants healthy.

9. Lower the surrounding temperature

Even while learning how to chill a grow tent in order to boost water vapor is common knowledge among indoor gardeners, it may be difficult when temperature management is required. Keep in mind that because cold air has a higher density than hot air, it will sink to the bottom of the container. Generally speaking, a lower temperature indicates that the air is relatively moist and contains a significant amount of water vapor. In a similar vein, decreasing the intensity of UV light can aid in the production of water vapor, but only if the amount of light is sufficient to enable water evaporation.

10. Opt for a swamp cooler

I use a swamp cooler to help keep the temperature in my grow tent down on occasion. The gadget assists in both cooling the air and increasing the humidity levels at the same time. It is capable of operating when the humidity is exceedingly low and the temperature is exceptionally high.

11. Stock up on water sources in your grow tent

Another low-cost method of increasing humidity in a grow tent is to increase your water supplies and distribute them more evenly around the tent. Water trays are often placed near to air intake tubes or passive air openings in my home. Similar to this, placing wet sponges near to growth trays is effective. As a result of the heat generated by a grow light or an air conditioning system, the water in the sponges will gradually evaporate, increasing the humidity in your grow tent. A pleasant reminder to utilize clean water in order to prevent unwanted fungus or bacteria from accumulating in your growing environment.

Fans and grow bulbs are powered by electricity, and when they come into touch with water, they may short circuit.

12. Reduce temperatures by adding an air conditioner to your tent

Gardeners may get high humidity in their grow tents by increasing the temperature of their air conditioners or decreasing the temperature of their heaters. It might be expensive, but it’s another option to consider if you’ve exhausted all other possibilities.


After everything is said and done, maintaining high humidity levels in your grow tent is critical to the development and health of your plants. Keep in mind that managing humidity necessitates taking into account other variables of indoor horticulture, such as temperature, ventilation, and lighting. All of the solutions I’ve discussed above are cost-effective, and the only decision you have to make is which is more appropriate for the circumstances of your grow tent and your budget. You may purchase a humidifier or air conditioner, but you can simply utilize ordinary household items to get the same results.

As a result, you may need to experiment with different methods of raising humidity in an agricultural tent.

Originally from Arizona, Lindsey Hyland attended the University of Arizona’s Controlled Environment Agriculture Center, where she received her bachelor’s degree.

She created in order to share gardening advice and strategies with others. If you have questions about succulents and houseplants, veggies and herbs, or just about anything in a backyard garden or hydroponics garden, she’s delighted to help you out!

How to Raise Humidity in Grow Room Without Humidifier?

Because I am an Amazon Associate, I receive money when people make eligible purchases. You will not be charged any additional fees! A humidifier is the most effective instrument for controlling the humidity in your grow space. It is the only device that will allow you to regulate the humidity level in your home to the level that you would want for your plants to be at. At the conclusion of this essay, we’ll explain how it works in more detail. However, this does not imply that it is the sole method of controlling the humidity in your grow room.

Here are simple ways to raise Humidity in Grow Room Without Humidifier.

The first thing we’ll look at is the temperature of the water. It’s one of the most challenging issues you’ll have to deal with in your grow room. This is simply due to the fact that the majority of the conditions in your grow room must be artificially maintained. In contrast to nature, you must take precautions to ensure that the temperatures within your grow tent do not increase above or fall below the required values. You might be wondering how temperatures and humidity are connected to one another.

  1. The speed and velocity of air circulation in your grow tent are determined by the temperature of the environment.
  2. When the air is heated, the particles in it vibrate and travel more quickly.
  3. It is as a result of this that water vapor in the air is quickly evaporated and is expelled from the grow tent through the venting system.
  4. As a result, your primary concern should be lowering the temperatures.
  5. It maintains its equilibrium, which allows it to store a large amount of water vapor.
  6. They include the use of cool lighting systems as well as the installation of ventilation systems.
  7. Fluorescent lights, in particular, generate significantly more heat as compared to other types of lighting bulbs.
  8. Remove any lighting systems that are causing excessive heat to be generated within the grow tent.
  9. LED bulbs are constructed in such a manner that 95 percent of the energy they use is used for illumination, with only 5 percent being used for heating.

You should consider the following lighting systems if you do not already have LED lighting systems in your grow tent. Purchase the one that will fit over your grow tent and help to avoid overheating in it. BESTVA DC Series is a series of best-in-class vacuum cleaners.

  • Our top option has a powerful cooling system and is available in a variety of wattages (1000W, 2000W, and 3000W).
See also:  How To Hang Banner On Canopy Tent

Click here to get the most recent Amazon pricing and to purchase it right away. King Plus LED Grow Light is a high-performance LED grow light.

  • Energy-saving technology
  • Full-spectrum light
  • Available in three sizes: 600W, 1000W, and 1200W. It is equipped with a bloom switch.

The light may be purchased on Amazon. Click here to get the most recent pricing and to purchase it on Amazon right now. Advanced Platinum Series is a series of high-end automobiles.

  • A powerful 300 watts with perfect 44 coverage at 18″ height
  • A superior 12-band full spectrum amplifier

The light may be purchased on Amazon. Click here to get the most recent pricing and to purchase it on Amazon right now. “ Depending on the size of your grow tent growing space, you need purchase one of the lights listed above. Please see our post on How Many Watts Per Square Foot for Led Grow Lights You Need for more information on determining the appropriate light wattage for your growing needs: “Can you tell me how many watts per square foot of LED grow lights you require?” Improve the ventilation in your grow tent.

  • When heat is created in the grow tent, it is not transported outside; instead, it has a negative impact on the temperature inside the grow tent.
  • It is at this point that grow tent fans and ventilation systems come into play.
  • In addition, proper ventilation would guarantee that the humidity inside the Grow area is consistent.
  • In order to provide proper ventilation, try purchasing one of the grow tent fans listed below from Amazon and installing it in your ventilation system.
  • Cloudline S6 from AC Infinity (Our Top Pick) The fan is the ideal size for a medium-sized grow tent.
  • The Most Important Characteristics
  • Ideal for a medium-sized room in terms of strength
  • Extremely peaceful
  • For more efficient power use, use the variable setting.

The fan may be purchased at Amazon. Click here to find out the most recent pricing and to purchase it right now. TJERNLUND M-67 Inline Duct Booster Fan is a fan that is installed in the ductwork. The fan produces 460 cubic feet per minute of electricity. This indicates that it may be used for a lengthy period of time without deteriorating in performance. The Most Important Characteristics

  • Made from durable and high-quality materials
  • The blade design is efficient, allowing it to handle a large volume of air
  • Fan that is extremely silent

The fan may be purchased at Amazon. Click here to get the most recent pricing and to purchase it from Amazon. Vortex 347 CFM S Line S-600 Fan, 6″ Vortex 347 CFM S Line S-600 Fan, 6″ You will be able to grow anything you choose in your tent or indoors with this tool. The Most Important Characteristics

  • It is simple to install
  • It is convenient to use with various speed controllers. Even at its greatest speed, this tent grow fan is among the quietest on the market.

The fan may be purchased at Amazon.

To find out the most recent pricing and to purchase the fan from Amazon, visit this page. The Hurricane Inline Fan has a tiny footprint, making it an excellent alternative for those with limited growing space. The Most Important Characteristics

  • Construction that is long-lasting
  • A fan that is very quiet
  • And ease of installation.

The fan may be purchased at Amazon. Click here to get the most recent pricing and to purchase it from Amazon right away. Terrabloom 10″ Inline Duct Fan with Remote Control It has a high airflow rate of up to 1065 cubic feet per minute. While doing so, it is also very cost-effective. The Most Important Characteristics

  • Runs at peak performance for a longer amount of time
  • Ultra-quiet ceiling fan
  • CFM coverage that is both strong and efficient in terms of energy usage

The fan is now available for purchase on the market. Click here to find out the most recent price and to purchase the fan right now.

2. Supply Enough Water

Humidity is just water vapor that has been trapped in the air. An additional simple technique to boost the humidity of your Grow room without the use of a humidifier is to ensure that there is a constant supply of water in your Grow area. The following are easy methods for increasing the amount of water available to your Grow tent. It is essentially water vapor that has been trapped in the air for a period of time. By ensuring that there is a constant flow of water in your grow space, you may boost the humidity of your grow room without using a humidifier.

  • Clean water should be placed around the grow tent.
  • Fill the containers with water.
  • Place them in such a manner that the fan’s breeze will blow over them.
  • Fungi and bacteria that harm your plants will thrive in contaminated water, which is why it is important to keep your water clean.
  • If this occurs, you will be responsible for the expense of replacing them.
  • All that is required is that you fill them with clean water and spritz the air around your plants.
  • The only difference is that you have to manually press the head of the containers in order for the mist to be released instead of automatically.

Purchase a jar that can store approximately 2 liters of water.

They will perform flawlessly.

The bottle may be purchased at Amazon.

These sprayers are identical to the bottle sprayers.

All that distinguishes the two is that one is manual, and the other is automated.

In most cases, they come with a larger water container as compared to the manual spraying option.

All that is required is that you purchase the sprayer, install batteries, and position it over your Grow tent. The Instapark Battery Operated Sprayer is the best battery operated sprayer available on the market. To find out how much it costs and to purchase it from Amazon, go here.

Instead of utilizing sprayers that splatter water all over your grow tent, you may use foggers to keep the environment clean. Atomizers, as they are commonly known, are devices that produce a mist of extremely tiny volume. The mist from the fogger will be ready to combine with your hair and turn into humidity without the requirement for wind flow or excessive heat to achieve this effect. The most effective foggers can hold between 2 and 3 liters of water. The Hudson 99599 Electric Fog Atomizer is the most effective fog atomizer available on the market.

Click here to get the most recent pricing and to purchase it from Amazon right away.

3. Mix Mature and Young Plants

It is possible to use foggers instead of sprayers to prevent water from splashing into your grow tent. Atomizers, as they are often known, produce a mist of extremely tiny volume. The mist from the fogger will be ready to combine with your hair and turn into humidity without the requirement for wind flow or excessive heat to achieve this result. Two to three litres of water is plenty for the best foggers. The Hudson 99599 Electric Fog Atomizer is the most effective fog atomizer available on the market right now.

Click here to find out the most recent pricing and to purchase it from Amazon.

4. Combine Different Techniques to Get Optimum Humidity

Different strategies for keeping your Grow tent well-humidified have previously been discussed with you in previous posts. It is important to utilize more than one approach in order to achieve the greatest results. Provide water to your Grow tent, keep the climate cool, and plant ripe vegetables in your Grow tent. Find tactics that may be used in conjunction with one another to achieve the greatest outcomes. Even if you do not spend a lot of money on purchasing and installing a humidifier, you will have the best humidity possible in your grow tent.

Understanding a Humidifier

Different strategies for keeping your Grow tent well-humidified have previously been discussed with you in previous sections. Combining more than one strategy will get the greatest results. Provide water to your Grow tent, keep the climate cool, and plant ripe crops in your Grow tent Find techniques that may be used in conjunction with one another to get the greatest possible outcome. You will have optimal humidity in your Grow tent even if you do not spend a lot of money on purchasing and installing a humidifier.

  • Dissipate the fog
  • Quiet for indoor applications
  • Low maintenance requirements

Click here to get the most recent pricing and to purchase it from Amazon right away. Humidifier with a Cool Mist

  • Click here to get the most recent pricing and to purchase it from right now! Humidifier with a cool mist

The humidifier may be purchased at Amazon. Click here to get the most recent pricing and to purchase it from Amazon right away.

Parting Shot

A humidifier is unquestionably the most effective method of managing humidity in a grow environment. The use of a humidifier, however, is not the only efficient strategy for increasing humidity in your home. All of the strategies covered in this article are excellent choices for use with a humidifier of some sort.

How To Raise Humidity In Grow Room Without Humidifier

Disclosure: As an Amazon Associate, I receive a commission on qualifying purchases made via my links. a little more information The humidity in your grow room is too low, and this is resulting in an array of issues. So, what do you do? In fact, if your marijuana plants are exposed to too little moisture in the air in your grow room, they might suffer from a variety of major problems. Most people would urge you to simply use a humidifier as a quick cure, but you may not have access to or be able to use one for a variety of reasons.

It is now feasible to raise the humidity level in a grow room without the use of a humidifier, and it is actually fairly simple.

You may use somewhat stronger grow lights and slightly lower the temperature and ventilation in the grow room. You can also add more sources of moisture into the grow room. Let’s take a moment to explain how everything works right now.

Why Not Use A Humidifier?

Full disclosure: I receive compensation from Amazon as an Amazon Associate. see this site for further information The humidity in your grow room is too low, and this is resulting in an array of issues. So, what do you do now? In fact, if your marijuana plants are exposed to too little moisture in the air in your grow room, they may suffer from some catastrophic consequences. Most people would advise you to simply use a humidifier as a quick cure, but you may not have access to or be able to use one for a variety of reasons.

Even without a humidifier, it is feasible to increase the humidity in a grow room.

You have the option of gently lowering the temperature, decreasing ventilation, adding additional sources of moisture into the grow chamber, and using somewhat more powerful grow lights.

  • It’s possible that the humidifier will take up too much room, space that you don’t have available. Humidifiers can cost several hundred dollars or more, especially for high-quality models. Humidifiers are not always precise, and they might be difficult to regulate. Using a big humidifier will generate a great deal of noise.

Raising Humidity In A Grow Room Without Using A Humidifier

There are a few effective methods for increasing the humidity in your grow room that do not require the use of a humidifier. Of course, none of these alternatives are quite as efficient as using a humidifier, but they can be useful in some situations. A further advantage of employing several different ways simultaneously, such as two or three approaches at the same time, is that you may be able to accomplish the same outcomes as you would with a quality humidifier.

1. Lower The Ambient Temperature

According to a basic scientific law (if you didn’t already know), the warmer an air mass is, the less moisture it can contain, and vice versa. In other words, the warmer an air mass is, the less moisture it can store. To begin with, you must make certain that the temperature of your weed plants is maintained at the right level during their growth cycle. In contrast, if the temperature in the grow chamber is already at the upper end of the range, it is OK for you to reduce the temperature by a few degrees.

Increased moisture retention is achieved by decreasing the temperature of the grow chamber.

2. Provide Your Weed Plants With More Water

Unless you already know, a basic scientific fact states that the warmer an air is, the less moisture it can store, and the cooler a space is, the greater the amount of moisture it can hold. In order for your weed plants to flourish well, you must ensure that they have the right temperature at all times. It is possible, however, to tolerate a small decrease in temperature if your grow chamber is at the upper end of the temperature spectrum. There are several methods for decreasing the temperature in a grow room, including the use of LED lights or grow lights with built-in cooling, the use of an air conditioning system, and the addition of extra ventilation.

LED lights and grow lights with built-in cooling are among the most effective. The colder air will be able to contain more moisture if the temperature in the grow chamber is decreased.

3. Spray Water In The Grow Room Regularly

If the soil in which you are growing the weed plants is already quite moist, sprinkling little water over the plants with a small spray bottle may be a simple answer to increasing the humidity in the grow room. Although this is a very temporary solution, and it would require repeated application many times per day to maintain optimal moisture levels, it is a solution that is effective provided you are diligent in your application and follow the instructions.

See also:  How Much Does It Cost To Rent A 20X30 Tent

4. Place Cups Or Buckets Of Water In The Grow Room

Simple things like placing a few cups, plates, or bowls of water about your grow area will go a long way toward increasing humidity in the environment. Ideally, one bowl of water should be placed in each corner of the grow area. The heat in the room, along with the lighting, will cause the water to evaporate, boosting the relative humidity in the room. The truth is that this is actually one of the finest, simplest, and most successful methods available. It will not cost you anything, and if you find that you are boosting the humidity too much, simply remove a couple of the water dishes from the arrangement.

5. Use A Fan BUT Decrease Overall Ventilation

In all fairness, employing a fan will not necessarily increase the humidity in the grow chamber, but it will help spread the present humidity more effectively (we have reviewed our favorite fans here). Water will collect in certain places of the grow tent and cause some portions of the grow tent to have more moisture than others, which will cause the humidity measurements to be inaccurate. A consistent flow of air within the grow tent will aid in the uniform distribution of the moisture content in the air.

As a result, if you wish to boost the humidity in your grow room, you should reduce the amount of air that is circulated through the grow room from and to the outside.

6. Use Slightly Stronger Lights

Utilizing slightly more powerful grow lights is another option for increasing humidity levels in your growing environment. What is true is that, as grow lights intensify in power, they will remove an increasing amount of humidity from the soil and your plants. Because the moisture that escapes from the plants and soil has nowhere to go, the humidity in the grow room will rise as a result of the lack of a drainage system. However, you must be careful that the lights are not excessively bright, or else you may get lighting-related issues such as light burn.


Another thing that you can do to assist improve the humidity in your grow room is to utilize slightly more powerful grow lights. What is true is that, as grow lights intensify in power, they will remove an increasing amount of moisture from the soil and from plants.

Because the moisture that escapes from the plants and soil has nowhere to go, the humidity in the grow room will rise as a result of the lack of a suitable outlet. Just make sure that the lights aren’t too bright, or else you’ll run into difficulties like light burn and other issues.

How To Increase Humidity In Grow Tent? Easy With 5 Tips!

Are you a gardener who enjoys your work? A garden tent is a terrific alternative if you want to be able to plant all year round without interruption. Grow tents are beneficial to gardeners because they allow them to manage the growth environment. These tents are composed of stretchy fabrics and have a bright lining on the inside to keep you visible in low light. It contributes to the retention of heat within the tent. Unfortunately, keeping the proper humidity levels within the grow tent is not a straightforward task to accomplish.

  • In my grow tent, I couldn’t figure out how to raise the humidity level!
  • Plants might suffer from reduced growth and development as a result of low humidity.
  • At different periods of a plant’s life, however, the amount of humidity it requires might vary significantly.
  • Otherwise, you risk losing your plants to the environment.

Why Is Humidity Important?

Humidity may be defined as the amount of water vapor present in the air in a specific location at any given time. In order to grow tents, we must first determine the relative humidity. It informs you of the percentage of water that is present in the surrounding air as well as the maximum amount of water that may be present at a certain temperature. A hygrometer may be used to determine the humidity level. It would be great if you kept in mind that plants may thrive at a variety of relative humidity levels; nonetheless, the temperature within the grow tent will have an impact on how well they develop.

What Happens When Humidity Is Low?

Water is essential for plants, as we all know, but what about relative humidity? When the temperature is high and the amount of water available is limited, dry air is produced. The plants are under extreme stress as they attempt to absorb more moisture in order to counteract the drying impact of the roots. Lower humidity levels can cause the roots to absorb more water, and if there are nutrients in the water, this surplus water can be detrimental to the plant’s health and growth. Low humidity can also increase the likelihood of a plant becoming afflicted with mildew or being infested by other insects.

Why Is High Humidity Important?

I was apprehensive about excessive humidity at first, and I was even concerned that it would hurt my plants. However, via trial and error, I have discovered that a high degree of humidity is really beneficial, particularly during the developing period. Because of this, the plants are able to absorb as much water as they need to survive.

However, plants also absorb nutrients and water via the leaves and stems of the plants they consume water via. When there is a high level of humidity, plants have a better chance of receiving adequate water and growing properly.

What Are the Suitable Humidity Levels?

Natural humidity levels always fluctuate, therefore it is advisable to adjust the humidity levels in a grow tent in accordance with the various stages of a plant’s life cycle. For further information, please see the video below.

  • Seedlings and young saplings demand a higher level of humidity. Ideal percentages should be between 70% and 75% of the total population. This is the period of time during which the plant’s root system is developing. It is important to maintain high humidity levels in order for saplings to establish robust root systems. Flowering plants need relative humidity levels between 40 and 50 percent to thrive. It provides them with an atmosphere that is favourable to their growth. Mildew and mold development can also prevented by maintaining slightly lower humidity levels. Humidity levels between 50 and 70 percent are ideal for plants that have already established themselves in the ground. Despite the fact that their roots have already established, they continue to suck in moisture through their leaves in order to grow more quickly. If possible, keep the humidity levels between 45 and 50% while you’re harvesting your crops. As a result, the fruit and vegetables will not get brittle or dry.

Although it is important to understand that relative humidity affects humidity levels, it would be preferable if you kept this in mind. So, before raising or reducing humidity levels, spend some time learning about how humidity behaves and affects plant development.

How to Increase Humidity in Grow Tent?

There are a variety of approaches that you may use to deal with the humidity issue. It will be determined by your financial situation and the amount of effort you are prepared to put in. Modest gardeners can get by with a few small stages, while more expert gardeners and pricey plants may need to take a few more significant measures. I’ve outlined a few possible courses of action from which you might chose based on your own circumstances.

1. No Cost and DIY Changes

  • It is possible to deal with the humidity issue in a variety of methods. How much work you are prepared to put in will be determined by your financial situation and the time constraints you have. A few modest measures are sufficient for little gardeners, while more expert gardeners and pricey plants may require more significant efforts. I’ve outlined a few possible courses of action from which you might pick based on your own needs and objectives.

2. More Expensive Changes

If none of the measures outlined above are successful for you, it is time to consider some alternative possibilities. The grow tent or space may be rather large, in which case these DIY techniques will be ineffective. You will have to spend some money, but believe me when I say that the results will be well worth your while.

  • Install an air conditioning unit- If you currently have an air conditioning unit in your grow tent, but it is not adequate, it is time to either replace it or add another unit. Before purchasing a new air conditioning unit, carefully analyze your needs depending on the weather, tent size, and other factors. Soil on the Floor- If your tent takes up a significant amount of space, it is likely that you will have some soil on the floor. You have the option of replacing this soil with one that has superior water retention. Alternatively, you may scatter it about the plants and observe the humidity levels rise
  • Construct or purchase a Propagator setup. Seedlings and young shoots are well protected when grown in a propagator, and the increased humidity aids in the growth of the plants. You will require the following items in order to construct your own set-up:

Allow the water to run into the humidifier through a pipe and see how it generates a cool mist in the tent as it does so.

  • Humidifier- If you don’t already have one, you should consider investing some money on a high-quality humidifier. It may be able to resolve all of your humidity issues. Maintain a working percentage of 50 to 65 percent. Get a humidifier that has an automatic control feature to make things even better. Keep an eye on the humidity levels, since too much might cause difficulties.

Humidifier Facts

When we talk about boosting humidity, the first thing that comes to mind is the use of a humidifier to accomplish this. It has the ability to boost the moisture content of any growing environment by releasing water vapor into the air. Nonetheless, humidifiers are essential to a plant’s existence, especially when the plant is kept in a tent. Humidifiers may increase relative humidity in a limited space, making the environment more favorable for plants. You can achieve the appropriate quantities of phosphorus depending on the plants and their growth stage.

  • The area to be covered by the grow tent, as well as its size, are critical considerations. Choose a humidifier that has the capability of covering the entire space. It also depends on the rate at which it humidifies and how long it may be left running. Look for a company that provides extensive and consistent coverage. The Water Tank’s Capacity- Every humidifier comes with a water tank of varying sizes. It would be better if you gave it some serious thought before proceeding. If it is too little, you will have to replenish it on a regular basis. When it is too large, finding a suitable location for it might be difficult. It is important to check if the humidifier has many settings available since you may require different mist settings at various times of the day. Safety features are quite important for any electrical item, and this is especially true for a humidifier. Some have an automatic shut-off feature that kicks in as soon as a specified humidity level is achieved
  • Others have a manual shut-off feature.

Can High Humidity Be Bad?

Having too much of a good thing may be detrimental, just as it is with everything in life. Even though high humidity is beneficial to plant growth, excessive humidity can do more harm than good if it becomes too prevalent. Extremely high humidity can result in a variety of difficulties, including

  • Having too much of a good thing may be detrimental, just as it is with everything in life! Even though high humidity is beneficial to plant development, when it becomes excessive, it may do more harm than good. When the humidity is too high, it can lead to a variety of difficulties including as


After reading this article, you should realize that increased levels of humidity in a grow tent are beneficial to the optimal growth of plants. It’s important to remember that humidity is affected by a variety of different elements, including ventilation, light, temperature, and water. As a result, it is a good idea to keep track of all parameters, not only humidity. When you have finished reading the information I have provided here, you will have a better understanding of how you may enhance the humidity levels within a tent.

The cost-effectiveness of some of the solutions allows you to experiment with them early in order to figure out what works and what doesn’t.

Please do not hesitate to contact us if you have any questions or concerns.

If you find the material beneficial, please forward it to anyone who may be in a similar situation. We are certain that you will soon be able to observe your plants developing more quickly and in a healthy manner if you follow the advice provided here.

Leave a Comment

Your email address will not be published. Required fields are marked *