Best Humidifiers to Keep Houseplants Happy and Vigorous in 2023

 We all love having lush houseplants in our homes. However, the most popular houseplants are tropical plants native to tropical rainforests, and they like to grow in warm and humid natural climates. If lack of humidity is causing plant health to deteriorate, using a humidifier is the easiest and most effective solution. The best plant humidifier is the one that meets the humidity requirements of our plants year-round, and we’ll help you find the best humidifier for your needs.

Choosing the right humidifier to meet our plant requirements is the most important decision. Selection criteria depend on several important factors such as the humidity requirements of the plants, room size, type of humidifier, hours of operation, and water and filtration requirements. We tested the best humidifiers for plants from a performance, maintenance, and functionality standpoint.

What is humidity? Especially in grow tents?

Humidity is the amount of water vapor present in the air. Usually expressed as a percentage. For example, 60% humidity inside a grow tent means the air is filled to 60% of its total capacity with water. Maintaining optimal humidity levels in a grow tent is critical.

This is because mold infestation can occur if the humidity in the grow tent is higher than necessary. Buds or flowers can start to rot due to high humidity. If the humidity is lower than necessary, your plants will be starved of nutrients.

ECO Farm Hydroponics 8L Capacity Air Humidifier Grow Room Tent

Features:

This ECO Farm humidifier can kill 99.9% of bacteria in water, thus atomizing sterile water into your home to increase humidity. Users of this humidifier find it durable, easy to clean and quiet to use. When set to “low”, the unit makes very little noise but adds enough humidity. Its powerful humidification is enough to keep your room comfortable all day long. The nozzle and output knobs of our plant humidifiers are very easy to adjust. With the 360° rotating nozzle and output knob, you can easily adjust the humidity to suit your space. The most serious problem reported by humidifier users is growth in the tank. This may be due to neglect to clean and maintain your humidifier, usually once a week. Our cool mist humidifier is very user-friendly, with a large opening that allows you to reach into the tank for cleaning, making cleaning and filling easier.

ECO Farm Industrial Ultrasonic Humidifier for Greenhouse Planting

Features:

Since the running time of the humidifier depends on the tank capacity, it should be large enough to reduce the frequency of water refilling. With this humidifier you get a 12 liter water tank that will keep the unit running longer. While run times are a little lower than claimed, you’ll only need to refill the tank after two days. Since this is an ultrasonic humidifier, it runs very quietly. The noise level will be below 30 decibels to be exact, so it is very convenient. It also has zero light pollution to help your plants have optimal growing conditions.

Pure Enrichment MistAire Ultrasonic Cool Mist Humidifier

Features:

Ultrasonic Cool Mist technology hydrates dry air safely and quickly for up to 25 hours, allowing you to breathe easier and get a more restful night’s sleep. High and low speed settings combined with a 360° spray nozzle help you consistently balance and regulate the humidity in your home year-round to relieve cold symptoms and sinus problems. The 1.5L water tank provides ideal coverage for bedrooms, offices, nurseries and other medium-sized rooms. An optional night light provides a soothing glow, while an auto-off feature turns the humidifier off when the water level is low or the tank is removed.

PureGuardian H965 Ultrasonic Cool Mist Humidifier for Grow Room

Features:

The PureGuardian H965 Ultrasonic Cool Mist Humidifier prevents dry air in your home and is ideal for those with colds, allergies and dry skin. The easy-to-fill 1-gallon tank is perfect for a 320-square-foot room and can run for up to 70 hours. Silver Clean prevents slimy mold and the growth of tank surfaces — a common problem with traditional humidifiers. The aromatherapy tray option helps create a relaxing environment with your favorite essential oils. Oil not included. Create a better home environment and optimize your comfort with an ultra-quiet, soothing cool mist. This benchtop humidifier has a low water level indicator that lets you know when to refill the tank. The night light feature makes it a great addition to a kid’s room.

Humidifier Buying Guide for Houseplants

From size to area covered, here are the most important features to look for when shopping for a humidifier designed for houseplants.

Size and Coverage: It all depends on how big your plant collection is, and the dimensions of your room. For some plants, a smaller humidifier might get the job done, but to really raise the humidity level in a room, especially with larger plants, you’ll need something a little more powerful. For example, a 1.5 liter tank should be the minimum capacity to cover an average sized room, but a 4+ liter tank can still cover an entire room and last all night, depending on the output setting.

Humidifier Types: There are several different types of humidifiers to choose from, each with its own unique advantages and disadvantages. Cool mist humidifiers use a fan to blow air through a wet filter or wick, creating a fine mist that is then dispersed into the air.

Warm mist humidifiers are less common but are a good option for plants that thrive in hot, humid ecosystems. They use heat to create steam, which is then released into the air to cover the leaves of plants. They are often more effective at raising humidity levels, but can also be noisy and even cause burns when touched.

Water Quality: Even with a state-of-the-art humidifier, the quality of the water you use matters, as it can affect the overall performance and lifespan of the unit. Tap or hard water often contains minerals and other impurities that can build up in the humidifier and cause it to clog or damage. We recommend using distilled water, or at least water that has been treated with a water softener to avoid this problem and help your unit last for many years.

Miscellaneous: Some other options to consider are the 360-degree nozzles, which let you adjust where the mist goes so all your plants get an even distribution. A dial that can adjust the humidity level is also great for finicky plants, while a timer (and night light) could make it ideal for a child’s bedroom. It’s also now possible to pair certain models with the company’s app, allowing you to control the device from across the room or even when you’re away from home.

Conclusion

Humidity is important for plant growth. Therefore, if the air is dry, you will need to increase the humidity in your grow tent.

I recommend you use a good humidifier for the job.

Hopefully my review of the different types of best humidifiers for grow tents today will help you decide which one is best for your plants.

happy shopping!