Best Cool Mist Humidifiers for 2022

What is the best cool mist humidifier? Winter is around the corner and you have made your decision: a cool-mist humidifier it is.

But you still cant figure out whats the best cool misthumidifier out there.

You know, that which will keep dryness out of yourrooms and help you get through the lackluster winter weather unscathed.

Well, we are here to help you get one thats right for you.

We even have a comprehensive guide explaining everything youneed to understand before buying a cool mist humidifier.

Here we go:

Cool mist humidifier explained

We first recap what a cool mist humidifier is, just in caseyou have come here for the first time.

Now, cool mist humidifiers are so called because they releasea steady flow of cozy room-temperature mist into the air. 

This is contrary to warm mist humidifiers that dispersesoothing warm steam throughout the room (they first boil the water beforeemitting the steam).

Types of Cool Mist Humidifier

If youre looking at a cool mist humidifier, its importantyou know that there are three different kinds - evaporative, ultrasonic, andimpeller.

Here are the key differences between the threesome membersof this humidifier category:

Evaporative cool mist humidifier

These humidifiers comprise a few basic components: a fan, reservoir, and wick.

The fan usually blows warm air onto the wick via the filter.

Since the wick has absorbed water from the mountedreservoir, this triggers an evaporation process culminating in the water evaporatinginto your rooms as ultra-fine, cool mist.

Ultrasonic cool mist humidifier

Ultrasonic cool mist humidifiers create gentle, fine mistand pass it into the environment using ultrasonic vibration technology (notfans).

There are by far the quietest of the three types of coolmist humidifiers.

Impeller cool mist humidifier

Impeller cool mist humidifiers are a type of device that flings water at a built-in diffuser in the process breaking the water into subtle droplets that hover in the air as moisture. 

You must keep the water source scrupulously clean asbacteria and mold can easily proliferate from the contaminated water.

These are typically louder than even evaporative units.

But what exactly are the benefits of using a cool misthumidifier?

Read on to know why investing in one could be a smart move as you prepare to outmaneuver winter blues such as super dry skin, throat ailments, and more because of the air becoming moistureless.

Benefits of cool mist humidifiers and why buy

While they both moisturize effectively, cool misthumidifiers outmuscle their warm mist counterparts in four major ways:

  • Kids stay safe- children (and pets) are playful and warm mist humidifiers can cause burns when they come near the steam or knock over the device (filled with hot water) by bad luck. In fact, the American academy of pediatrics recommends a cool mist humidifier for baby bedroom, nursery, or other places patronized by kids.
  • Reduced energy bills- the water doesnt need to undergo heating before being spread. Subsequently, this type of humidifiers consumes less electricity.
  • Great for hard water areas- theyre not easily hurt by hard water mineral deposits and are a safer bet if you live in such a zone.
  • Best for warmer climates- they bring down the ambient temperature when humidifying (think cool mist) and are better for hotter climates.

Buying Guide (What to consider when buying cool mist humidifier)

Ok, now weve finished going over that, time to move on tothe vital features you have to look out for when selecting the best cool misthumidifier.


You get what you pay for, right?

And features are just one of those things that can make a vastdifference in humidifiers.

Specifically, a budget cool mist humidifier will have ahandful of functions and settings and you may find it a bit annoying.

On the other hand, humidifiers closer to the top of the linewill probably have, among other things, a humidistat, safety shut off button, super-responsivecontrols, etc.

Covered area

Too large a humidifier for a room might create condensationwhich could lead to mold and bacteria to form and you should choose a unitthats correctly sized.

Measure your room and check the indicated coverage area (squarefoot) when comparing to get a precisely sized device.

Beware of noisy brands

Admittedly, noises are a natural occurrence in humidifierswhen its running, but you dont want the types that are too noisy.

Ultrasonic cool mist humidifiers carry the day here and areoutstanding for light sleepers, baby rooms, and areas where silence is a matterof life-and-death such as libraries.

Research about the maintenance

Okay. The skyline is gray as is the leftover slushy snow.You dont want a model that makes your mood gray when maintenance time comes.

Reading the reviews will give you an idea about whether itseasy to detach the tank for cleaning and refilling, and if the design makesinstalling a new filter easy-peasy.

Other features

Units with an aromatherapy option make sense if yourepassionate about the holistic healing treatment associated with aromaticessential oils.

Similarly, models with a bigger tank capacity are more convenientas theyre likely to last you the whole night.

Back to maintenance and indicators to remind you aboutfilter change and reservoir refilling can be handy too.

Phew, that was pretty long but its for a good cause.

Thankfully, I saved the favorite part for many- the coolmist humidifier reviews- for last.

Dont go anywhere yet..

Best cool mist humidifier reviews

Like I mentioned at the start, we are not leaving anythingto chance and want to help you land the very best model.

Here we take you through our cool mist humidifier reviews.

There are dozens of competing models in the market but theseare the units that blew us off our feet.

BONECO/Air-O-Swiss Warm or Cool Mist Ultrasonic Humidifier

BONECO Warm or Cool Mist Ultrasonic Humidifier 7142

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The Boneco/Air-O-Swiss is an elite humidifier thataccomplishes two missions with perfection: It functions as a warm misthumidifier when you need it and as a powerful cool mist humidifier when calledupon.

This versatility makes it one of the verybest humidifiers for rooms up to 600 sq. ft.


Part of what makes this humidifier so appealing is that itsautomated- with the integrated hygrostat; you set your desired humidity andleave it.

The mist output will adjust itself automatically as the roomhumidity changes and you will savor optimal humidity steadily.

The output of 3 gallons/24 hours is one of the highest for600 sq.ft. and means it brings results faster than rivals.

The Boneco/Air-O-Swiss includes a pre-heating functionto lift room temperature when its bitterly cold (mist exits at a pleasurable104 °F ) and stay warm.

Its an outstanding invention and comes with watermaintenance accessories like a demineralization cartridge (to control scale/mineralresidues) and hydro cell (to keep it fresh).

Finally, the multifunction display is a pleasure as arethe practical refill and cleaning reminders.


  • Low noise especially in night-time mode.
  • Functional timer.
  • High quality.


  • Pricey.

TaoTronics Cool Mist Humidifier, 4L Ultrasonic Humidifiers

Humidifiers for Bedroom

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TaoTronics cool mist humidifiers automatic humidity levelsmonitoring system keeps your indoor humidity at a magical level all the time.

We were especially impressed with its 12-30 hour runningtime on full tank (4L capacity) and its incredible 38 dB noise level (lowestlimit of ambient sound in urban areas). 


The great steam output from the reliableTaoTronics cool mist humidifier is perfect for soothing irritation of thenose, throat, skin, lips, eyes, as well as issues like rashes, severe nasalcongestion, and more.

We also found the LED display quite detailed, the digitalcontrols easy to maneuver, and the three mist levels more aggressive.

All these help it earn the top spot for units designed forspaces 107-322 sq. ft. big.

We additionally like that it lets you choose betweenturning on the soothing nightlight or sleep mode (to turn off its LED screen)and sleep like a log.

Overall, this is the king for condos, baby room, and other environments where disturbances are unwelcome.


  • Safe- goes off automatically on low water.
  • Plentiful coverage (360° nozzle).
  • Easy tank cleaning/refilling.


  • No aromatherapy provision.

Honeywell HCM350W Germ Free Cool Mist Humidifier

Vicks Starry Night Filtered Cool Mist Humidifier

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Good luck getting a humidifier that brings healthiermoisture than what you get from this HCM350W unit from Honeywell.

The scientifically proven ultra-violet light technologykills about 99.9% of harmful organisms in the equipments water and your roomwill be filled with germ-free moisture.


Another winning device (for rooms up to360 sq. ft.), this uses Honeywells patented QuietCare technology andis nearly 30% quieter than the rest.

It has just 3 settings (high, low, medium) -rather than tensof controls to learn- and adjusting output and sound levels is quick and easy.

The reservoir design is another attraction- its easy tofill and features a superb recessed tank handle so it wont slip out of hand whenwet.

I should add that the 1.1 gallon tank runs for up to 24hours making it another option when youre facing dry winter nights.

Plus, its a lasting unit and comes with a 3-year limitedwarranty.


  • Relaxing, invisible moisture.
  • Decent looking.
  • Easy setup.


  • No auto shutoff.

Pure Guardian H920BL Ultrasonic Cool Mist Humidifier

Guardian Technologies Pure Guardian H920BL Ultrasonic Cool Mist Humidifier

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Thanks to its slim design, the compact H920 coolmist humidifier is the perfect choice for tabletops/ bedside nightstands.

The company has added silver clean protection to the tank somold and mildew wont grow like it often happens with traditional humidifiers.


It doesnt have quite the oomph (packs two speed mistsettings only) of larger competitors, but itstill puts out decent vapor as long as your space isnt morethan 210 sq. ft.

In fact, it provides a slot (on the top) that letsyou rotate the nozzle to direct the mist where you need it most.

We love so many things about it including the idea ofimplementing an LED night light (optional) which is great for those who sufferproblematic sleep.

Like most, the low water warning alerts you when a refill isneeded. 

Plus, it shuts off automatically for safety when empty.

The 0.8L tank is reasonable and can runs for about 10 hours(on low setting).


  • Whisper quiet.
  • 3 year warranty.
  • Space saving design.


  • Small tank capacity.

BONECO Travel Cool Mist Ultrasonic Humidifier

BONECO - Travel Ultrasonic Humidifier U7146

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A change of scenery during winter can give a shot of color to your life and you need a companion just in case the air turns very dry during your travel.

That friend is probably this travel cool mist ultrasonic humidifier from BONECO.


There are no prizes for guessing about its design: itstightly packed together and fits snugly into any luggage to supplywell-humidified air - wherever you go.

They even deliver it with a cute travel bag for easierstorage during your trips and an AC/DC adapter to give you more flexibility ifyou will be spending time off-grid.

Usage is not a problem either- pop on any pet bottle (theresa bottle adaptor to help it handle various bottle types -up to .5 liters/17oz.), connect the device, and relax as healthy air streams into your room.

The variable output control lets you specify the humidityoutput you desire.

You can easily tell if its running- the indicator lightturns blue.

Likewise, you will know when it runs out of water- this timethe indicator light turns red.

Besides, it will conveniently switch off the moment its outof water.

Remember to place it 3 feet off the floor (at least) andpointing to an open space to enjoy the best humidifying effect.


  • Automatic switch-off.
  • Easy cleaning (comes with a cleaning brush).
  • Very well built.


  • Not great in big rooms.

Final thoughts

So there you have our guide on everything you need to learnabout cool mist humidifiers.

Hopefully, the above five options will give you an idea ofwhats out there and help you narrow down to a unit that will keep you healthyand happy throughout the chilly winter months.

Of course, what you settle on will ultimately come down toyour needs, preferences, and budget.

Nevertheless, we hope you have found this write-up helpful!