Best Humidifier for Houseplants

With so many humidifiers in the market, getting the best one for your houseplants may be tough. But then, the purpose of this guide is to help you make an informed decision when choosing the best humidifier for your houseplants.

During summer, fall, and winter, the humidity level drops, and the plants in your home will be affected. Many house plants do not thrive in dry conditions, and raising the humidity level in your home becomes essential. The mist dispensed by the humidifier does not benefit your houseplants alone, but you as well. 

When you get a humidifier for your houseplants, it will help them conserve plant moisture and lower the rate at which your plant lost moisture. 

Choosing The Best Humidifier For Houseplants: Buyer’s Guide

Room Size

You need to consider where you placed your plant before getting a humidifier. If your houseplant is in a small room of between 200-300 square feet, a small-sized humidifier will do the job, 400-500 sq ft requires a medium-sized one and any space above 500 sq ft. need a large-sized humidifier.

Choosing the right humidifier helps to prevent problems that may arise as a result of too much humidification or low humidification.


Placing your humidifier directly opposite your plant or too close to your plants is wrong. Although your plant needs moisture to grow well, a humidifier dispenses moisture with its fans, and this may cause draught and cause your plant to wilt. 


Timers are great because they serve as a reminder for when you need to adjust the humidifier, turn it on/off and refill water.


If you can’t maintain a humidifier, don’t get it. Using a humidifier comes with a lot of responsibilities as you have to clean it regularly to prevent bacteria from building up, this includes switching out the filter regularly.

Mist Type

Humidifiers add cold or warm mist to the atmosphere, depending on what you want. The type of mist will determine how well your plant will thrive.

If the humidity level is too low or too high, your plant will be affected. Viruses and bacteria thrive in places with low humidity as the moisture in the plant will dry out faster.

When the humidity is too high, dampness occurs, and damp air encourages mold build-up and diseases.

5 Best Humidifier for Houseplants

#1. Honeywell HCM350W Germ-Free Cool Mist Humidifier

Honeywell HCM350W Germ Free Cool Mist Humidifier

This is a humidifier that runs quietly. It comes with all the features of a modern plant humidifier. It is a large and effective humidifier that dispenses invisible and soothing moisture to help moisturize the air around your home and ease any discomfort that may arise from dry air. 

It’s able to stay for 24 hours at every refill and work silently. Therefore, it can be easily used in your room for your indoor plants. Its 3-speed setting helps you adjust the moisture output and control the noise level. The wicking filter absorbs harmful minerals from the water to avoid them being dispensed to the air and contaminating it.

The filter is treated with Protect antimicrobial that stops the growth of mold, and this helps to maintain the humidifier’s durability.

According to many users of this humidifier, the description is accurate due to the performance. These users also saw tremendous change in their plant as they became greener and smoother.

However, this isn’t a budget humidifier, but you’ll get value for your money. Also, it doesn’t come with an automatic shut-off, and this makes it difficult for you to keep to your preferred humidity level when you forget to monitor it.    

#2. TaoTronics Cool Mist Humidifier

TaoTronics Cool Mist Humidifier

Taotronics humidifier is budget-friendly and noiseless. It is a cool mist humidifier that uses ultrasounds. It comes with an auto-shutoff and micron cartridge for filtering water and separating microorganisms and unhealthy mist. It has an LED display that indicates the moisture level in your room.

The tank has a 4 liters capacity and it can run for up to 15 hours. Its 360-degree rotatable nozzle makes it easy for you to adjust the level of mist you want to circulate around your room.

It has automatic shut-off to shut itself off when the water gets low and a timer that enakes you to set your humidity level from 1-24 hours.

Users of this product claimed to like the product even though the water tank has to be filled every 2-3 days. Users also complained that cleaning this humidifier takes time. Therefore, the difficulty encountered during cleaning makes the users exposed to the risk of a build-up of bacteria and plant diseases. So, note these features and be sure you can cope with them before settling for this humidifier.

#3. Vicks Warm Mist Humidifier

Vicks Warm Mist Humidifier

Arguably the most common germ-free, easy to maintain, and cost-effective humidifiers out there. It comes with auto shut-off and a 1-gallon capacity tank that runs for up to 12 hours. It has a handle for easy opening and refilling of the water tank. 

It also comes with an adjustable knob for different settings and an automatic shut-off feature. This humidifier requires a little maintenance cost and It can be used for indoor plants because it operates silently.

There have been positive reviews from many users of this humidifier. It is easy to clean and helps to improve the quality of your houseplants and helps you recover from nasal congestions. Many users recommend this project because it cost low but have great features. With the Vicks humidifier, you do not have to bother about replacing your filters due to the absence of screens. Therefore, you can only use distilled water, and this humidifier is quite big for smaller rooms. 

#4. Pure Guardian Cool Mist Humidifier

Pure Guardian H965AR Ultrasonic Cool Mist Humidifier

This is a humidifier designed for tabletops. Its a budget-friendly and noiseless humidifier for rooms like offices, nurseries, and medium rooms. It can run for as long as 70 hours but this depends on the settings. It doesn’t come with a fan and as a result, works very quietly. But, it comes with an automatic shut-off, and it doesn’t require much maintenance. 

Many people love the Pure Guardian humidifier because of the ultrasonic technology that makes it run quietly. The ultrasonic technology produces mist through the use of a metal diaphragm that doesn’t come with a fan but produces a high-frequency vibration. You don’t have to bother to yourself about filling the water at short intervals because the tank is big enough to accommodate enough water.

However, this humidifier may be somewhat difficult to move, especially when you’re trying to move it around due to the absence of handles. It also produces a cloud of white dust, and this can disrupt the growth of your plant.

#5. Pure Enrichment MistAire XL Ultrasonic Cool Mist Humidifier

Pure Enrichment MistAire Ultrasonic Cool Mist Humidifier

The MistAire humidifier can provide you with up to ten to twelve hours of moisture, and it can humidify 500 square feet space and above. Its large tank takes a gallon of water, and the unit shuts itself down when the water level is low. It comes with two nozzles and a mist knob.

This mist knob is used to regulate the amount of mist in the room and the two nozzles that help you to choose your preferred mist flow. It doesn’t come with a filter but has one cleaning brush. Also, it has a night light with different colors that makes your bedroom outstanding.

It’s the ideal humidifier for people that want the best but are on a budget. For effective results, use only distilled water on this humidifier.

The Importance of Plant Humidifiers

Some of the well-known benefits of humidifiers for plants are: 

  • Humidifiers are beneficial to your plants and surroundings by reducing infections in your home.
  • Humidifiers do not give room for microorganisms like viruses and bacteria to thrive in your home
  • Humidifiers help your plant to recover quickly from diseases
  • It helps your plants to look more vibrant, smoother and healthier
  • A humidified home will not experience plant tipping, dryness, and dullness, and these make your plant healthy.


Dry air will kill your plants because plants need warm air to grow well. Once you turn on your humidifier, the air becomes warmer, and you don’t have to use any other means such as heating water to generate moist air for your plants. So, you can heat your room with the Humidifier and dispense moist air as well.

Plants in low humidity environments have discolored flower buds that fall down quickly from the plant, and the plant may appear brownish. When flower buds fall off, reproduction will not take place, and the plant will not thrive well. But, when you use a humidifier, the humidity level in your indoor garden increases and the buds will flourish again and reproduce.

However, note that plants are different, and the levels of humidity differ from plant to plant. For instance, orchids require 40-70% of humidity, and other houseplants need 40-60%. 

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