Best Cool Mist Humidifiers iMore 2021
Keep yourself protected from allergies, asthma, and cold and flu symptoms this season with a cool-mist humidifier. Cool mist humidifiers are excellent at easing your sore throat, reducing coughing and congestion due to dry air, and even helping to keep your dry skin and organs moisturized. We recommend the Air-O-Swiss Ultrasonic Humidifier because it can manage the humidity in large rooms for up to 24 hours, and is extremely silent while working.
- Best Overall: Boneco Air-O-Swiss Ultrasonic Humidifier 7147
- Best Silent Humidifier: TaoTronics Cool Mist Humidifier
- Best for Allergies: Honeywell HCM350W Germ-Free Cool Mist Humidifier
- Best for Babies: Crane Ultrasonic Cool Mist Humidifier
- Best Portable: Pure Enrichment MistAire Studio Ultrasonic Cool Mist Humidifier
Best Overall: Boneco Air-O-Swiss Ultrasonic Humidifier 7147
Measuring at 14 x 11.6 x 11.6 inches and weighing 9 pounds, the Boneco Air-O-Swiss Ultrasonic Humidifier 7147 is an excellent humidifier that can manage the humidity levels in large, 600-square-foot rooms. With its 3-gallon water jug, this humidifier lasts a lengthy 24 hours before needing to be refilled. It is also ultra-silent, so you can leave it on while you sleep without any irritating noises.
When managing a room, this humidifier uses high-frequency vibrations to generate a micro-fine mist. This means that the water particles evaporate almost instantly, keeping the air full of moisture. Another great feature is that you can switch between cool and warm mist as the Boneco Air-O-Swiss Ultrasonic Humidifier 7147 offers both. The included hydrocell provides additional freshness in your room.
Included in the design of this humidifier is a handy digital display panel that allows you to program the hygrostat so that the humidity levels adjust automatically. This Boneco Air-O-Swiss humidifier also comes equipped with an auto mode which regulates the mist temperatures according to the temperatures in the room. A few customers have found that the display controls had issues upon arrival of their humidifier.
- Great for large rooms
- Lasts 24 hours
- Cool and warm mist
- Issues with display controls
Best Silent Humidifier: TaoTronics Cool Mist Humidifier
If you're someone who isn't a fan of background noise while you sleep or while you lounge in your house, then the TaoTronics Cool Mist Humidifier is perfect for you. This humidifier is super silent while remaining as powerful as ever. It produces less than 38 decibels of noise. Normal conversation reaches about 60 decibels, and libraries are often kept at a noise level of 40 decibels, so this humidifier is exceptionally silent.
This mister comes prepared with a 4-liter water tank that allows the humidifier to run for 12-30 hours. This is great for managing the humidity while you sleep, or for preparing your house with optimal moisture in the air for when you get home from work. Happily manage rooms that are up to 322 square feet, such as a nursery, office, or living room.
Incorporated in the design of this humidifier is an LED display that informs you of the current relative humidity (RH). Although 40-60 percent is ideal, you can choose from three different mist settings to suit your needs. If you want to use the mister while you sleep, you can convert the humidifier into a night light. Or you can turn off the LED display completely, allowing you to have the most comfortable sleep.
The TaoTronics Cool Mist Humidifier measures at 8.1 x 5.3 x 11.8 inches and weighs a light 3.25 pounds. Although it is advertised to last up to 30 hours, some customers found that it was only lasting about 15 hours on a high mist setting.
- Silent 38 decibels of sound
- LED display with humidistat
- Three different mist settings
- Doesn't last as long on high mist setting
Best for Allergies: Honeywell HCM350W Germ Free Cool Mist Humidifier
The Honeywell HCM350W Germ-Free Cool Mist Humidifier measures at 17.5 x 9.4 x 11.8 inches and weighs 9.4 pounds. This humidifier is brilliant for helping to ease the symptoms of allergies and flu. It incorporates UV technology that kills 99.99% of bacteria in the water, ensuring that the moisture it brings to your room is clean and filtered.
This humidifier also uses evaporative technology that blows moisture through a filter. This helps ensure that the water evaporates immediately so it can start to remedy your symptoms as soon as possible. You don't have to worry about your air becoming overly humid with this evaporative technology as the air cannot collect any more moisture than it can hold.
When the air is too dry, it affects your skin and can cause allergies and dry cough. Dry air can also damage your furniture. The Honeywell HCM350W Germ-Free Cool Mist Humidifier manages the humidity and moisture in the air to help relieve these pains, creating a soothing and healthy environment.
Make sure you clean this humidifier every couple of weeks as it can start to leave a musty smell in the air if you don't.
- Kills 99.99% of bacteria in water
- Uses evaporative technology
- Great for allergies and colds
- Can leave musty smell if not cleaned properly
Best for Babies: Crane Ultrasonic Cool Mist Humidifier
The Crane Ultrasonic Cool Mist Humidifier is a beautiful addition to your nursery or child's room. It features a 1-gallon tank and can last up to 24 hours. This humidifier is whisper-quiet, so you don't have to worry about it disturbing your baby during nap time. It also doesn't contain any heating elements, which makes it extra safe for your child.
This humidifier measures at 6.8 x 13.4 x 8.6 inches and weighs 4.5 pounds, which makes it a great size to place in your baby's room. Its humidity control compacity reaches up to a large 500 square feet so that you can manage multiple rooms at once. Once the tank is empty, the Crane Ultrasonic Cool Mist Humidifier automatically turns off, so you don't have to worry about it becoming damaged.
This humidifier does not require a filter and comes prepared with anti-microbial materials that keep mold and bacteria growth to an extreme minimum. It is reduced by up to 99.96%. This means that all of the moisture that is being pumped into the air that your baby is breathing is clean and safe.
Some parents mention that the water volume in the tank is too small.
- Whisper quiet
- Great for infants
- Auto-off features
- No filter
- Anti-microbial materials
- Water volume is small
Best Portable: Pure Enrichment MistAire Studio Ultrasonic Cool Mist Humidifier
The Pure Enrichment MistAire Studio Ultrasonic Cool Mist Humidifier measures at 11.1 x 5.1 x 5 inches and weighs an ultra-light 1.45 pounds. Its small and compact size makes it perfect for bringing along with you while you travel. Easily moisturize small rooms such as a hotel room or an office while away.
This humidifier comes prepared with a 0.7-liter water tank that allows the mister to operate for 10 hours before needing to be refilled. It also comes prepared with two different mist settings: high and low. The high setting runs at 80 ml/hr, and the low setting runs at 60 ml/hr. This is great because you can adjust the settings to suit your needs.
If you like a light while you sleep, this humidifier comes equipped with an optional night light option. Included in this bundle is an AC power adapter, a disk cleaning brush, and a user manual to make using this humidifier as easy as possible. The Pure Enrichment MistAire Studio Ultrasonic Cool Mist Humidifier is backed by a 5-year warranty so that you can travel with it stress-free.
Although this humidifier is excellent for travel, some customers have noted that it tends to leak and isn't compatible with wood.
- Small and compact
- Backed with a 5-year warranty
- High and low mist settings
- Cannot be placed on wood
- Tends to leak
Cool mist humidifiers are a great addition to your home, especially during the colder seasons. Not only do these humidifiers help to relieve symptoms of allergies and colds, but they also protect your furniture from the dry air. Keep your air humid and your skin and organs moisturized with the perfect cool mist humidifier.
We recommend the Air-O-Swiss Ultrasonic Humidifier because it is excellent for managing the humidity in large, 600 square foot rooms while remaining whisper quiet. It also offers warm and cool mist options, which is a great added feature.
Credits — The team that worked on this guide
Camille Sanghera is a freelance writer who loves telling stories through writing. When she is not content writing, you can find her watching movies, playing sports, or writing books. Check out her blog at www.happycoconut.ca.
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