Most plants, including cacti and succulents, thrive best in a slightly moist environment, which is where a humidifier comes in handy.

Below, you will find our review of the best rated humidifier units that we selected after putting many units through our testing experiments in various plantation environment such as plant-filled rooms and green house.

Based on our 60 days testing period, we observed how different plants reacted with the added humidity from different types of humidifiers. And therefore, we only recommend cool mist humidifiers for plants.

7 Highly Rated Humidifier for Plants

Humidifiers	Name
CHECK PRICE	Best Overall Value TaoTronics	Type: Cool Mist Color: Black Weight: 5.2 lbs Coverage: 430 sq.ft Capacity: 6 L Run Time: 60 Hrs Warranty: 1-year
CHECK PRICE	Best Budget Vicks	Type: Cool Mist Color: White Weight: 4 lbs Coverage: 400 sq.ft, Capacity: 1.2 gal Run Time: 30 Hrs Warranty: 2-year
CHECK PRICE	Best Value Honeywell	Type: Cool Mist Color: White Weight: 18.7 lbs Coverage: 2,000 sq.ft Capacity: 1.5 gal Run Time: 24 Hrs Warranty: 3-year
CHECK PRICE	Best Design Vornado	Type: Cool Mist Color: White Weight: 9 lbs Coverage: 1,000 sq.ft Capacity: 2 gal Run Time: 24 Hrs Warranty: 5-year
CHECK PRICE	Also Great VAVA	Type: Cool Mist Color: White Weight: 6.2 lbs Capacity: 2.5 L Run Time: Warranty: 1.5-year
CHECK PRICE	Best Budget iTvanila	Type: Cool Mist Color: Black Weight: 3.89 lbs Coverage: 400 sq.ft Capacity: 5 L Run Time: 50 Hrs Warranty: 1-year
CHECK PRICE	Best Green House DOROSIN Ultrasonic	Type: Cool Mist Color: White Weight: 74.8 lbs Coverage: 1620 sq.ft Capacity: 2.4 gallon/h Run Time: Continuous Warranty: 90 Days Humidistat: Built-in

Pros

Cons

Construction and Design

The TaoTronics TT-AH025B Humidifier has a smooth, rectangular design with curvy top edges. This humidifier features a black finish with a blue stripe on one of its sides, which makes it a great looking unit.

Its construction consists of sturdy plastic and a unique PCBA Nano-film coating that makes it water-resistant while also preventing degradation. This unit comes with a 1-year warranty, but you can extend it to 18 months by registering your unit on the manufacturer’s website.

• Length – 17.7″
• Width – 11.5″
• Height – 7.7″
• Weight – 5.2 pounds

This unit is pretty compact. However, you will need to dedicate a small table for its placement. It is also lightweight and very portable.

Power and Humidification Capacity

Armed with a large capacity 6-liter reservoir, the TaoTronics TT-AH025B Humidifier guarantees to deliver a 60-hour continuous misting for your plants.

• This unit provides a high mist output of up to 300ml/hour on the highest setting.
• It features a swivel nozzle that rotates at an angle of 360 degrees, which allows you to direct humidity to different areas, and thus ensuring that all your plants get an equal share of the moisture.
• This unit is capable of spreading moisture in vast spaces, measuring up to 430 square feet, which means that it can cater to a large population of plants.
• This unit pushes moisture one meter high, which facilitates a wider spread while also preventing the formation of a white residue around its base.
• It produces 28 dB of noise, which makes it a silent operator. While your plants wouldn’t mind the noise, the silent operation makes it perfect for indoor plants.
• This humidifier comes with an auto-shutoff feature that kicks in when the reservoir runs dry, which prevents overheating.
• It also comes with a filter at the air inlet section, which traps dust and improves the quality of the air you breathe.

Setup and Usability

The TaoTronics TT-AH025B Humidifier comes with fully analog controls where you use a rotary knob to select the variable mist output levels.

• Its tank features a large opening that renders the task of refilling with water.
• The generous tank has the unit to run for up to 60 hours without requiring a refill, which in essence means less work for you.
• The unit also comes with an alert light that notifies you when the tank is running low on water.
• This implies that you don’t have to remove the reservoir from time to time to monitor the water levels.

Ease of Cleaning and Maintenance

Given its removable tank with a large opening, this unit is pretty easy to clean.

• The tank pops out of the base with minimal effort and the large opening allows you to wash the unit by hand.
• You may also want to add vinegar into the unit and let it sit for about 15 minutes to disinfect and loosen the scale.

Pros

Cons

Construction and Design

The Vicks V4600 Humidifier features a round design finished with white, a sunken top, and a translucent blue tank. This humidifier features a 2-year warranty that covers performance and components.

• Length – 10.9″
• Width – 9.4″
• Height – 13.5″
• Weight – 4 pounds

This unit comes in a compact body and has a very small footprint. It is also very easy to carry around.

Power and Humidification Capacity

The Vicks V4600 Humidifier is equipped with a 1.2-gallon reservoir that holds enough water to get you 30 hours of continuous misting on the low mist setting.

This humidifier comes with a variable mist output setting that allows you to control the amount of moisture released into your indoor atmosphere per hour. 

Extra features that place it among the top contenders when it comes to performance include:

• It features a 360-degree nozzle that spreads mist evenly to each plant.
• This unit boasts enough power to spread mist in rooms measuring between 100 and 400 sq. ft., which makes it perfect for small to medium-sized grow rooms.
• It has an aroma box that you can use to add nice scents into your grow room. Not that your plants need the nice scent; the sweet aroma will come in handy if your plants are situated in the living room, bedroom, or conservatory.
• This humidifier also operates quietly, which makes it ideal for indoor plants located in your living space.

Setup and Usability

Equipped with analog controls, the Vicks V4600 Humidifier is pretty straightforward to use. This humidifier features a removable tank with a large opening, which makes it hassle-free to refill with water.

The tank is large enough to provide continuous misting for 30 hours, which means that you only need to refill it once a day.

Other factors that make this unit easy to use include:

• This unit’s tank is translucent, meaning that you can monitor the water level visually. It also boasts an automatic shutoff feature that kicks in when the unit is running low on water.
• It also features a tank-empty LED warning light that will alert you when the water level depletes.
• This humidifier features a rotary mist nozzle that you can turn with ease instead of moving the entire unit when you need to focus the mist to a particular area.

Ease of Cleaning and Maintenance

• When cleaning the unit, you need to add one cup of distilled vinegar into the tank and reinstall it back to the base.
• Let it soak for 20 minutes to loosen the scale from water minerals.
• Afterward, use a damp cloth to wipe all the parts clean.
• You can clean the tank by hand, thanks to its large opening.
• Rinse everything thoroughly to ensure that no traces of vinegar are left in the components.
• You should also use a soft damp cloth to clean the scent slot but refrain from using vinegar in this area.
• Do not immerse the base into the water.

Pros

Cons

Construction and Design

The Honeywell HEV685W Humidifier features an oval shape with a petite, but lengthy body. This humidifier features a white hue and large clear tanks, one on each side. It consists of break-resistant plastic that makes it very durable, a fact that’s supported by its 3-year warranty on parts and labor.

• Length – 21.3″
• Width – 13.4″
• Height – 13″
• Weight – 18.7 pounds

This one is rather a large unit. Although this unit is bound to take up a lot of space in your grow room, there is a silver lining to its size; it’s meant for large spaces, and thus, finding a spot to place it won’t be too much of a hassle. This unit is also relatively heavy, which makes it quite difficult to carry around.

Power and Humidification Capacity

Armed with two 1.5-gallon reservoirs, the Honeywell HEV685W Humidifier is capable of providing 24 hours of continuous misting before the water depletes.

• This humidifier utilizes an evaporative method of humidification where the water is absorbed by a filter, and a fan blows air through the filter to disperse moisture throughout your space.
• It comes with three fan speeds that allow you to determine the rate at which you need your plants to be fed with moisture.
• This humidifier features a large, round grill on the top, which ensures that the mist is spread evenly into your space.
• It comes with a built-in humidistat that allows you to predetermine your ideal RH levels. The unit shuts-off automatically when the set humidity level has been achieved.
• This humidifier is powerful enough to cover large spaces measuring up to 2000 square feet, which makes it perfect for grow rooms with multiple plants.
• Its filter features a patented Protec Anti-microbial Coating that eliminates harmful bacteria and prevents the growth of mold.
• This unit produces a cold mist that won’t form a white deposit on your plants and the surrounding surfaces.

Setup and Usability

Despite having several attractive features, the Honeywell HEV685W Humidifier is hardly complicated to operate.

• This unit comes with two analog buttons; one allows you to set your desired humidity levels while the other allows you to select the mist output speed.
• The humidity button allows you to select RH levels between 40 and 60 percent.
• This unit also features an internal mechanism that cycles the unit on and off to maintain the set humidity levels.
• The mist output speed setting enables you to choose between low, medium, or high depending on your plants’ requirements.
• Both tanks feature a practical and convenient design; they are translucent, which allows you to see the amount of water remaining.
• The reservoirs are also removable and feature a top opening that makes them easy to refill with a pitcher, or even under the faucet.
• The unit also features a tank-refill light that tells you when it needs more water.
• This humidifier’s automatic shutoff feature kicks in when the water depletes to protect it from overheating.

Ease of Cleaning and Maintenance

This humidifier is very easy to clean and maintain because of its easily removable tanks and filters.

• When cleaning the unit, you need to add one teaspoon of vinegar into one gallon of water and pour the solution into both tanks.
• Swish the reservoirs to ensure that the entire surfaces of the tanks are wet.
• Replace them on the base and let them sit for 20 minutes.
• Rinse everything thoroughly until the smell of vinegar is gone.

Pros

Cons

Construction and Design

The Vornado Evap40 Humidifier features a box-like shape with two round tanks flanking on its sides. This humidifier features large air inlet grills on the front and back with the outlet located on the top section to ensure even mist distribution.

It comes with an industry-leading 5-year warranty covering parts and labor.

• Length – 10.5″
• Width – 19.5″
• Height – 13.5″
• Weight – 9 pounds

It is a large device that will occupy quite a lot of space in your grow area. It is also quite heavy, but not too much to make carrying it from place to another impossible.

Power and Humidification Capacity

The Vornado Evap40 Humidifier employs the evaporative technology, vortex circulation, and large air grills to cover vast areas measuring up to 1000 sq. ft.

• This humidifier features two 2-gallon tanks that facilitate a continuous runtime for up to 24 hours without calling for a refill.
• It also utilizes a built-in humidistat that automatically detects the moisture in your grow room and cycles on and off to maintain your desired levels, which comes in handy in preventing oversaturation.
• This unit comes with three fan speeds including high, medium and low, which allow you to regulate the rate at which the mist will be disbursed in your grow house.
• It uses both hard and distilled water, but you may need to change the filters more regularly if you use the former.
• This humidifier operates silently at the low fan setting but becomes rather loud when you switch to the highest speed.

Setup and Usability

Armed with two removable tanks and two rotary knobs, the Vornado Evap40 Humidifier is particularly easy to use the unit.

One of the adjustable knobs allows you to set a precise level of humidity to ensure that your plants get the right amount of moisture.

Other features that facilitate its usability include:

• Its built-in humidistat enables the humidifier to cycle on and off to maintain your set RH levels, which means that you don’t have to frequently adjust your unit in a bid to prevent over-saturation.
• The tanks are removable but feature a rather small opening. Nonetheless, you can refill them effortlessly under a faucet.
• With the tanks providing 24 hours of continuous misting, you don’t have to refill them too often. Once a day is sufficient, which makes your work a whole lot easier.
• The ability of this humidifier to cover large spaces means that you only need to use a single unit in spaces measuring up to 1000 square feet, which means less maintenance for you.

Ease of Cleaning and Maintenance

Although the unit has tanks with small openings, cleaning it is a quick and hassle-free task. All the parts, including the tanks, powerhead, and filters, come off the base with little effort.

• When cleaning the tanks, add one cup of white vinegar to one gallon of water and pour the solution inside.
• Cover the filling spout with your hand and shake vigorously to ensure that the entire interior surface of the tank is wet.
• Allow the solution to sit for 20 minutes before rinsing the reservoirs thoroughly with fresh water.
• Use compressed air to blow dust from the grilles and wipe the entire surface of the unit with a damp cloth.
• Replace the filter after every four weeks if you use hard water and eight weeks if you utilize distilled water.

Pros

Cons

Construction and Design

The VAVA VA-AH010 Top Fill Humidifier looks like a crockpot in its round design and front control panel. This unit features a white top and base coupled with a black, translucent reservoir that allows you to monitor the water levels visually.

It also comes with an 18-month warranty for your enhanced peace of mind.

• Length – 12.3″
• Width – 11.3″
• Height – 11.1″
• Weight – 6.2 pounds

This unit is not too large to take up too much space in your grow room and can fit comfortably on a small table. This humidifier is also quite lightweight and you can carry it easily without straining yourself.

Power and Humidification Capacity

Being a low voltage unit that draws 30 watts of power, the VAVA VA-AH010 Top Fill Humidifier is capable of producing 2.5 liters of moisture within ten hours without causing your energy bills to skyrocket.

• This humidifier utilizes the ultrasonic technology that makes its operation whisper-quiet, silent enough to saturate your indoor air without disrupting your sleep, study, or relaxation.
• It features a rotational nozzle that reaches 360 degrees to facilitate even distribution of mist in your grow room.
• This humidifier can turn water into vapor with four mist speeds indicated as 1, 2, 3, and 4 on the display screen, which allows you to choose the rate at which the unit should saturate your indoor environment.

Setup and Usability

Endowed with a top-fill tank and front control panel, operating the VAVA VA-AH010 Top Fill 

Humidifier is easy breezy.

The top cover pops out easily to expose a large tank opening that allows you to feed the unit with water without worrying about accidental spillage.

The tank also comes with a large handle that makes it easy to carry from the unit to the sink and vice versa. Ideally, you can cover the tank after refilling it with water to prevent leakage when carrying it back to the base.

Ease of Cleaning and Maintenance

The unit comes with amazing features that make it easy to clean.

• Its tank features a large opening that gives you adequate access for effective cleaning.
• The tank also has a round shape, which means that there are no nooks and crannies that would otherwise render it harder to clean.
• The tank and base are separated, which keeps the base free of water and safe from damage.

Pros

Cons

Construction and Design

The iTvanila C3 Cool Mist Humidifier features a vertical, rectangular shape with round sides that make it appear almost like a cylinder.

This humidifier has a black shade and a smooth exterior that gives it an elegant appearance. Its construction consists of BPA-free plastic and features a 12-month warranty on parts and labor.

• Length – 14.6″
• Width – 10.9″
• Height – 7.9″
• Weight – 3.89 pounds

While this unit is quite tall, it has a small footprint and won’t take up too much of your grow room space. It is also pretty easy to carry or move around.

Power and Humidification Capacity

The iTvanila C3 Cool Mist Humidifier adopts the ultrasonic technology that allows it to produce a mist output of 350 ml/h, which makes it the perfect choice for quick humidification.

This humidifier has a large-capacity 5-liter tank that provides up to 40 hours of continuous misting. Ideally, this unit can run for 40 hours on the low mist setting and 15 hours on the high mist setting without calling for a refill. It boasts the capacity to cover areas measuring up to 400 sq. ft.; thus, it’s perfect for serving a small number of plants.

Other features that keep on a competitive edge when it comes to performance include:

• This humidifier operates with a low noise output of 27 dB, which makes it perfect for humidifying indoor plants located in the bedroom, among other relaxation areas.
• It comes with an aroma tray that allows you to create a custom ambiance in your house using your favorite essential oils.
• This humidifier shuts off automatically when the tank runs out of the water, which protects it from self-damage.
• It comes with a 360-degrees nozzle that enables it to distribute mist evenly throughout the grow room and serve every plant.
• This unit runs the fan three minutes after misting to ensure that the mist tube stays dry.
• The subtle white light on the unit allows it to function as a nightlight for your kids, which is especially useful if they’re afraid of sleeping in the dark.

Setup and Usability

Operating the iTvanila C3 Cool Mist Humidifier is as easy as falling off a log.

• This humidifier comes with a rotary dial knob that allows you to switch it on and off with ease, and also select the mist speed. You can easily adjust the mist output speed to low, medium, or high.
• The tank easily pops out of the unit with an effortless nudge and features a large 92mm opening, which makes it easy to refill it with water.
• The tank’s large capacity means that it doesn’t run out water too often, which means less work for you, especially when using this unit for prolonged periods.
• Thanks to its full rotary nozzle, you don’t have to move the unit when you need to direct mist to specific plants. Instead, you can simply rotate the nozzle to whichever direction you wish to direct moisture.

Ease of Cleaning and Maintenance

Although this humidifier’s tank comes with a 99mm opening, the hole is not large enough to allow you to clean the reservoir by hand.

• You need to clean it with a bottle brush to remove the water scale.
• The tank is removable, which allows you to clean the base with a damp cloth.
• Cleaning the rest of the unit is pretty easy as it features a smooth, glossy finish that allows you to wipe it with damp fabric.
• You can also disinfect the tank with white vinegar every few weeks to descale it.

Most indoor plants, especially the tropical varieties, will appreciate a little more moisture in the atmosphere, which is particularly true during the winter when humidity is generally low.

In the winter, most homeowners utilize heaters that dry out the entire house, which is why you’ll often experience dry skin and cracked lips. Unfortunately, the same thing happens to your plant.

If the cold, unforgiving winter weather is making your indoor plants appear dull and wilted, you should consider investing in a good humidifier and raise the humidity levels in the atmosphere surrounding your prized possessions. Humidifiers go a long way in conserving the plants’ inherent moisture, which is achieved by reducing the rate of evapotranspiration.