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Humidity is an essential factor for successful farming. Although not every grow tent requires a humidifier, it will do your indoor plants some good if you have one, especially if you live in a hot climate. For this guide, we picked the Vornado Evap40 Evaporative Humidifier as the best grow tent humidifier for your buck. Please keep reading for our other picks as well; there’s something for everyone, whether budget, size, or needs-based.
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The Best Grow Tent Humidifiers 2024
The humidifier helps regulate the humidity level in the grow tent, creating a convenient, suitable, and healthy environment for your plants. Choosing the right humidifier for your grow tent can be a lot of tasking, as there is much to consider. Here are the best humidifiers for grow tents today.
- Best Overall: Vornado Evap40 4-Gallon Evaporative Humidifier
- Best Budget-Friendly: Everlasting Comfort Air Humidifiers
- Best for Small Grow Rooms: Pure Enrichment® MistAire™ Ultrasonic Cool Mist Humidifier
- Best for Large Rooms: LEVOIT Humidifiers for Large Rooms
- Best for Whole-House: AprilAire 500 Whole-House Humidifier
- Best Portable: SmartDevil Small Humidifiers
- Best for Tap Water: Crane Ultrasonic Humidifiers
- Best Warm Mist: Vicks Warm Mist Humidifier
The Vornado humidifier is one of the best humidifiers for your grow tent. If you want to avoid having to refill your humidifier constantly, then getting this 4-gallon tank will do you so much good. It comes with 3 fan speeds, which allow you to control how much humidity you want your plant to receive per time.
This humidifier also automatically senses the humidity level in the air and adjusts to it. We love that the company offers a 5-year replacement warranty on this humidifier.
While this humidifier has a large tank that works just fine for large spaces, you may be required to add more water, more often than usual for larger spaces.
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Our new EBOOK shows newcomers and green thumbs alike a step by step guide to growing the garden of their dreams.
If you are working with a budget, this everlasting comfort ultrasound humidifier is your best bet! Our favorite feature in the Everlasting humidifier is its 6-liter water tank that conveniently serves 500 sq ft for up to 50 hours, without needing a refill! It comes with an output nozzle allowing you to regulate and decide on how much moisture is released to the grow tent.
The Everlasting Comfort Ultrasonic Humidifier gives you more for less, the ultrasonic motor helps this device produce sounds under 30dB, which makes it a quiet humidifier. Another feature we’re absolutely in love with is the filterless design, this saves cost as you don’t have to replace filters from time to time.
The Everlasting comfort humidifier comes with an auto-shut-off, making the device go off when it detects the empty tank. We love the additional essential oil tray that allows you to add aroma to the room.
The Pure Enrichment MistAire Ultrasonic Humidifier comes in a compact design size, however, this doesn’t affect the effectiveness of this device. Top on the list of our most loved features is the 360-degree nozzle that ensures a precise rotation of the mist. This humidifier is suitable for small grow rooms and is easy to clean and refill.
Cleaning regularly will help clear out mineral residue and dust, especially if you use tap water. It has a capacity of 1.5 liters of water, and this can last up to 25 hours. A safety feature we love is the auto-shot-off feature, which allows the device to go off when the water is low.
The Pure Enrichment Mistaire only comes with two mist-level settings, and this may not serve in the capacity you’d love it to. We love that although this is a compact-sized humidifier, it gets the job done, effectively.
The Levoit LV600HH Hybrid Ultrasonic Humidifier is a favorite for us. We love that it suits temperature-sensitive plants. It allows you to switch the mist’s modes to suit the need of the plant and the season. Not only do you get to control the humidity level, but you can also choose to use the cool or warm mist humidifier.
Another feature we love is the built-in humidity sensor, which helps the humidifier adjust and maintain the current humidity level for your plant. It also comes with an auto shut-off feature that allows the device to go off when the tank is empty.
This humidifier has a large 6-liter capacity which lets it run for up to 50 hours, this capacity can serve a room size of up to 750 sq ft. We also love that it is easy to clean and fill and that it operates quietly.
Your large grow tents will thank you for this humidifier! The Aprilaire whole house humidifier is designed to serve a grow tent of up to 3600 square feet, providing up to 12 gallons of humidity to your plants in a day.
We love the humidifier’s dual sensors, which allow it to monitor and respond to the temperature outdoors and indoors automatically, you only have to set it once and forget it.
We also love the digital control that lets you see the percent humidity when changing the water panel and the lights that indicate when the device is on or off.
Are you on a budget? The SmartDevil small humidifier is perfect for you who want to get an effective humidifier for less! This is a desktop-style humidifier for your small grow tents, office, and bedrooms. The humidifier comes with an auto-shutoff operation that turns off the humidifier once the water is low, ensuring that nothing is damaged.
It also comes with two spray modes; the continuous spray mode and intermittent spray mode, this is most useful during climate changes.
We love that it comes with two light modes; intermittent and constant light. While this is not exactly a feature your grow tent needs, it’s a feature that can come in handy when needed. It’s also a valuable addition that the smart devil humidifier operates silently. Because this device is small, you must refill it with water often.
The Crane Drop Ultrasonic Humidifier is suitable for large rooms of 500 square feet and operates for up to 24 hours. One of our favorite features about this humidifier is the optimal demineralization filter that cleans up water, making this device suitable for tap water and hard water.
We also love the adjustable settings, which allow you to control the humidity level your plants are getting. It comes with an automatic shut-off feature, that puts off the device when the water is low. It also changes light, to suit the time of the day.
We especially love the essential oil pads that allow you to add essential oils to make the environment soothing; while this isn’t a feature your plant needs, it will come in handy when you use this device for your home.
The Vick’s mist humidifier is specifically for you if you live in cool, dry zones or prefer warm mists. This humidifier works well for large grow tents or up to 500 square feet. It doesn’t come with a filter, which can save some costs as you don’t need to worry about changing filters.
A good safety feature we like is the auto-shut-off feature that switches the device off when the water is low. It also comes with a medicine cup that allows you to add essential oils. It is said to be germ-free as the humidifier can kill 95% of harmful microorganisms.
We love that this device comes with a 3-year warranty.
Why Proper Humidity Matters in Grow Tents
If you’ve ever stepped into a dry sauna, you’ll understand the difference between an environment saturated with moisture and one parched dry. Now, picture your plants experiencing similar fluctuations. Just as our skin feels the difference, plants sense and react to these changes in their surroundings. Here’s why proper humidity is good for your grow tent.
1. Stomatal Functionality
Plants have tiny openings on their leaves called stomata. Think of these as their breathing apparatus. Proper humidity ensures these stomata open and close efficiently, allowing the plant to take in carbon dioxide and release oxygen seamlessly. But when it’s too dry, these stomata might close to conserve water, hindering the plant’s breathing process.
2. Nutrient Uptake
Believe it or not, humidity can influence how plants absorb essential nutrients. When humidity levels are balanced, plants can easily take up water from the soil, which carries vital nutrients. If it’s too low, the plant struggles with water uptake, and if it’s too high, the roots might get waterlogged, impacting their nutrient absorption.
3. Prevention of Pests and Diseases
Too high humidity is an open invitation for pests like spider mites and fungi like mold and mildew. Conversely, too low can stress plants, making them susceptible to pests. Striking the right balance ensures your plants remain hearty and pest-free.
4. Optimal Growth and Yield
Plants flourish in specific humidity ranges during different growth stages. Seedlings prefer higher humidity while flowering plants lean towards the lower side. Maintaining stage-specific humidity can significantly impact crops’ health, growth rate, and yield.
5. Transpiration Control
Transpiration is like plant perspiration. It’s their way of releasing excess water. The rate of transpiration is directly affected by humidity. Proper humidity levels ensure that plants don’t lose water too quickly or retain too much, maintaining their overall health and vigor.
In essence 🌱
Think of humidity as the silent guardian of your grow tent. It might not be in the limelight like sunlight or nutrients, but it’s working tirelessly behind the scenes to ensure your plants are living their best lives. In our next section, we’ll delve into how to keep this guardian always on its A-game with the right humidifier.
Final Thoughts
Choosing the right humidifier for your indoor grow tent is an important decision to make, as it can affect the health and growth of the plants. The eight humidifiers reviewed above offer a range of features and sizes, to suit your grow tent needs.
Before deciding on which humidifier to buy, ensure to consider the size of your grow tent, your budget, and the environment. All of these will help you make an excellent decision.
