Honeywell HCM-350 Cool Mist Humidifier Review
Design and size
Honeywell HCM-350 has a stylish design. The water tank has a smooth bottom design and the handle is one of the most comfortable and well balanced on the market. That makes the Honeywell HCM-350 very easy to fill. Also, the lid is easy to get off and on. Filling this humidifier is a pleasure.
Honeywell HCM-350 is 12 inches high, 18 inches wide and 10 inches long in-depth. Quite a big size but the weight is only 9.9 pounds. You can easily place it wherever you want – table, nightstand, etc.
- The Honeywell HCM-350 Cool Mist Humidifier has an evaporative technology. The cool mist is regulated automatically. The mist output simply adjusts to the perfect amount for your indoor air temperature.
- The humidifier has 3 speeds. Great if you want to choose quieter and lower mist output or on the contrary.
- About the easy refill reservoir, I already wrote before. But I can write again. The reservoir has a handle and it is very easy to refill the tank.
- UV technology kills and destroys up to 99.9% of harmful bacteria.
- You can wash the water tank in the dishwasher. Yes, it is dishwasher-safe.
- On the low-speed humidifier runs up to 24 hours.
On low-speed, the humidifier is whisper quiet.
On medium, it provides a peaceful, gentle white noise
At high speed, it sounds like a fan.
The Honeywell HCM-350 is ideal for people who like light background noise while resting or sleeping.
Maintenance and upkeep
The maintenance is easy. If you are using the humidifier every day than you have to refill it once a day or more.
All the rest maintenance depends on how clean water you use. But optimally clean the humidifier every 3-4 weeks. Clean the water tank and soak the filter in a vinegar/water, it can get crusty.
Honeywell HCM-350 is quiet, easy to set up and use, and easy to maintain. The Honeywell HCM-350 was recently recommended by a leading consumer reporting magazine.
Coverage (Sq ft / m2)
360 / 33
Type of humidifier
Moisture output per 24h (Gallons/liters)
2 / 7.6
Tank size (gallons/liters)
Run time per tank
Water refill indicator
Mist output control
Automatic safety shutoff
Filter cleaning and (or) replace
Silent on low, quite loud on high
Energy usage (max)
Size (inches / centimeters)
Height: 13 / 33
Width: 18.6 / 47
Depth: 10.4 / 26.5
Weight (pounds / kg)
9.9 / 4.5
3 year limited
Overall Rating (max 5)
10% Noise level
20% Maintenance & Upkeep
Other useful resources
Read our full humidifier buying guide here.
See Indoorbreathing humidifier comparison charts. (Humidifiers by mist type, by type, by price and coverage area).
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