MistAire – XL Ultrasonic Cool Mist: Humidifier Review

A lot of appliances promise a lot but deliver much less, humidifiers are no different. MistAire ensures that you get exactly what you are looking for especially with this improved version, the MistAire – XL Ultrasonic Cool Mist Humidifier that is bigger and better than its smaller sibling.

It will provide high-quality cool mist throughout the day with its double mist output caps.

If you are new to this version of the humidifier, don’t worry we got you covered. We will show you the features that make it stand out from the competition.

Description of the XL Ultrasonic Cool Mist by MistAire

MixAire XL Ultrasonic Cool Mist Humidifier greatly improves in the amount of space covered up to as much as 500sq. Ft. This is due to the larger 1-gallon water tank fitted in the appliance to enable cover much larger space than its smaller sibling.

The tank’s large capacity ensures it runs for between 12-24 hours freeing you the hassle of having to refill it every now and then. This ensures your house is properly moisturized throughout the day and night.

For those who are sensitive about the noise level, this humidifier is whisper-quiet during operation making it suitable for office, study rooms, and nursery use. The sound is even undetectable and is almost silent. This ensures you have peace of mind and are not distracted while sleeping or studying.

Dry air can cause dozens of health problems to your nasal passage as it is very susceptible to flu and cold virus. Also, if you are already having allergy problems, dry air only makes situations worse. Breathing air that has the correct humidity can help lessen the severity of these health problems as it helps sooth the nasal passage by enabling a free flow of air which consequently removes stuffiness and congestion.

This humidifier is expertly designed with an elegant see-through look that enables the appliance to emit optional light during the night. This soft nightlight produces a soothing effect, that when coupled with mystified air, can help you sleep faster and achieve the REM sleep.

The light is can also be put off especially for those who love dark nights. It also has another secondary light that intelligently informs you about the state of the device. It will turn green if the appliance is operating normally and the water levels are O.K. It then turns red especially if the water level is too low so informing you to refill it.

Safety is another aspect that was greatly considered when making this device. It is made in such a way that water levels do not go to zero so as to ensure its own safety and those of the surroundings. Always having at least a small amount of water ensures that in case of a power surge or its parts blow off, the water will spill helping avoid a possible fire hazard. It also has an auto-shutoff to compliment various other safety features. This ensures the humidifier is never on when there is no water in the tank or when the tank has been removed.

Maintaining this MixAire XL Ultrasonic Cool Mist Humidifier is very easy as it doesn’t have many parts to clean. Also, cleaning is only required a couple of times which is mainly to ensure that no bacteria build up that would cause bad smells to come out of the tank. Being filterless is partly beneficial because it means that maintenance cost and is significantly brought down.

Another aspect of this humidifier is it comes with a single and double mist output caps that you can choose from depending on how you want the mist quality to be. Additionally, a variable mist control knob is fitted on the side allowing you to precisely select the desired mist level.

The humidifier uses an advanced ultrasonic mist technology that produces high-quality mist for almost 24 hours depending on your settings.

Technical Specs

ModelXL Ultrasonic Cool Mist Humidifier
Type of HumidificationCool Mist Ultrasonic
Type of MistCool
Room Coverage500 sq.ft
Tank Capacity1 gallon
Humidification PerformanceUp to 2 gallons per 24hrs
Water Low Indicator-
Automatic Shut-OffYes
Maintenance Reminders-
Display Dimmer-
Power Supply120, 25W
Weight3.7 Lbs
Dimensions 7.5” x 10” x 12.5”
Accessories Included-
Price (in USD)59.99


  • Large enough to serve a large room
  • It’s whisper-quiet so you can listen to your favorite shows without hearing the vibrating motor.


  • Even after you turn off the LED lights, it does not turn off completely and this can be a nuisance especially for those who like completely dark rooms at night.
  • It does not use a filter hence white dust might settle on furniture after using it for sometimes due to the accumulation of the mineral by-product of non-filtered itself. If this is an issue however, you can avoid that by ensuring that the water you use is always filtered.

Users' feedback

Users quotes on Amazon.com This is my 4th cool mist humidifier, and I absolutely love this one. It's quiet, puts out quite a bit of mist if needed. I can adjust the amount I want. It covers a decent area, about 400-500 square feet. (I had a different brand before this one that was a nightmare, and the warranty was a nightmare.) This one however works great, would recommend to anyone who needs moisture in the air. I could tell a difference on breathing and my skin. I live in the high desert area of CA, so any moisture I can get in the air is a plus."

Users quotes on Amazon.comThis was my first ever humidifier. I've had it for close to a year now and I love it. It works extremely well - in fact maybe even TOO well sometimes (if I run it too high in the night I'll wake up in the morning to light "fog" in the room!) But that's only if I run it close to the max setting. I usually run it about a quarter or half way which is plenty. And running it at those levels means the water lasts for about 3 to 4 nights for me. Which I like because I don't want to have to refill this every single night. It runs quietly and you can visibly see it working. I also like the nightlight feature. The blue and green lights are beautiful and relaxing. The red is fine, just not my personal favorite. One negative thing about this humidifier is that there is a small LED that is on all the time, even if you don't have the nightlight feature on. I sleep with a sleeping mask on so it doesn't bother me, but if I didn't use a sleeping mask it would be really annoying."

Conclusion: XL Ultrasonic Cool Mist by MistAire

If you love MistAire Cool Humidifier and are looking to upgrade for a larger version without having to switch for another brand, then this 1 gallon XL version is surely the better option.

It not only retains all the cool features of the smaller one but also upgrades them to make it more useful and long-lasting.

All this without having to dig deep into your pockets that much, we think this could be a good pick.

Our rating:


| MistAire - XL Ultrasonic Cool Mist
| Rating :