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Honeywell HCM350B Germ Free Cool Mist Humidifer White

4.4 out of 5 stars 12,387 ratings

White
Humidifier
Color White
Brand Honeywell
Material Plastic
Power Source Corded Electric
Product Dimensions 17.9 x 9.37 x 11.4 inches; 8.36 Pounds

About this item

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  • GERM FREE COOL MIST HUMIDIFER – HoneywellGerm Free Cool Mist Humidifierhelps to ensure proper humidity levels in your home. Indoor humidity levels between 40-60% can help relieve cough and congestion, keep throat and nasal passages hydrated and more
  • GERM FREE –This cool mist humidifierfeatures a patented germ killing process and UV technology that continuously kills 99.9% of water-bred germs, bacteria, mold and spores in the water. With a 1.1 gallon tank, it can operate for up to 24 hours
  • COUGH AND CONGESTION RELIEF –Humidifiers for homecan be helpful during cold and flu season, when it’s difficult to sleep with cough and congestion. A humidifier or vaporizercan provide temporary relief by adding necessary moisture to the air
  • HUMIDIFIERS FOR BEDROOMAND MORE –A cool mist humidifieris great for a baby, young children and adults, and fits perfectly into any room. Use them when the air is dry, in allergy season, when sick or even just to maintain optimal indoor humidity levels
  • COMPATIBLE DOES NOT MEAN COMPARABLE –For best performance, use only a Genuine Honeywell humidifier filter. Compatible humidifierfilter replacementsare not guaranteed to offer the same performance or efficiency

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From the manufacturer

HWM-350

Product description

Color:White  |  Style Name:Humidifier

During cold and flu season, when allergies kick in, or the air is simply just dry, you can relyon the HoneywellGerm Free Cool Mist Humidifier. Honeywell humidifiers for bedroom, kids room and beyond add necessary moisture to the air, and help ensure proper humidity levels in your home. Indoor humidity levels between 40-60% can help relieve cough and congestion, keep throat and nasal passages hydrated, temporarily relieve dry airdiscomfort, protect furniture, reduce static electricity and even keep plants healthier. Plus, this cool mist humidifierfeatures a patented germ killing process and UV technology that continuously kills 99.9% of water-bred germs, bacteria, mold and spores in the water. With a 1.1 gallon tank, it can operate for up to 24 hours. This germ free humidifier provides soothing, invisible moisture to relieve dry air discomforts, and features 3 speed settingsto adjust moisture output and sound level. It’s easy to fill, clean and carry, with a wide tank opening, dishwasher safe water tank and tray and large recessed tank handle. Plus, it is a self-regulating evaporative system that blows moisture off a wicking filter, helping it evaporative into the air quickly. It's not possible to over-humidify with evaporative technology because you can't add more moisture to the air than it can hold.The QuietCare Technology makes it 30% quieter than similar evaporative humidifiers.

Product information

Color:White  |  Style Name:Humidifier

Warranty & Support

Product Warranty: For warranty information about this product, please click here [PDF ]

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Customer reviews

4.4 out of 5 stars
4.4 out of 5
12,387 global ratings
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Top reviews from the United States

Reviewed in the United States on January 24, 2018
Color: WhiteStyle Name: HumidifierVerified Purchase
1,639 people found this helpful
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Reviewed in the United States on September 25, 2018
Color: WhiteStyle Name: HumidifierVerified Purchase
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3.0 out of 5 stars Works well and I like it, but I don't love it.
By Jessie on September 25, 2018
I've owned this humidifier for three and a half years. I purchased it after finding that my ultrasonic humidifier had invisible slime growing inside the tank, so I specifically looked for something I could thoroughly clean and for the most part I haven't been disappointed. Here are my observations and opinions.

Maintainance/Cleaning:
• Can be cleaned thoroughly. The bottom tray and tank can be placed in the dishwasher or can easily be scrubbed by hand because the hole in the tank is large enough to fit an arm through. I clean it in the dishwasher without detergent and turn off high heat/sanitize and heated dry to avoid melting the plastic. The large opening in the tank also makes it pretty easy to dry the inside of the tank to deter mold growth. However, there's one spot inside the tank that's not easy to scrub. I has a weird shape where the handle is located. I haven't had mold grow in that spot, but I consider this a design flaw. I recommend cleaning once a week or the tray will get slimy. I've had this happen when I missed a week.
• I do recommend cleaning the wick along with the tray, tank, and lid weekly, and allowing the wick to dry each day because it definitely can grow mold. My first one did. Once a week, I soak the wick in vinegar, then rinse in water. Every day I remove and wipe out the tank and allow the unit to run until the wick is dry. I haven't had any issue with mold since I started doing this that first year.
• You have to buy wicks. Cleaning them does extend the life of them, but they don't last forever. I'd say mine last a few months before they get hard and begin falling apart.
• The tank lid is NOT easy to clean, and I don't put it in the dishwasher or soak in vinegar because I'm afraid of damaging the rubber seal. I clean with soapy water, a toothbrush, and Q-tips every week. It gets slimy/moldy if I don't. (I also find it difficult to get the lid screwed on tight enough to prevent leaking and have to try several times most times I fill it.)
• As one commenter stated, the fan blades aren't easy to get to to wipe off dust. I've found this issue with every fan I own. I use compressed air cans remove the dust from the blades. This works very well on this unit unlike the tower fan I own. (That commenter also stated that there was mold on their blades, but that's never happened to mine. I only run it at night though, so perhaps if run 24/7?)

Humidity-
• It definitely humidifies my large master bedroom and I notice a huge difference in my throat and sinuses when I use it. However, it's difficult to control the level of humidity. Even on low it seems to cause condensation on the windows. My old unit had a setting for humidity level, but this just has high, medium, and low settings.

Noise-
• This is a difficult one because people vary in their noise tolerance. The fan does make noise even on low. I personally like that because it's a mellow, low-frequency white noise that helps drown out sounds and helps me sleep.

Durability-
• As I stated, I've had it for over three years and it still works great. I use it all night during autumn, winter, and spring.
• The UV light lasted about three years. I recall it working last winter, but I don't think it is now. However, I don't think it really made any difference anyway and it actually damaged the plastic tray around it in the same way constant sun damages hard plastic. This hasn't affected the way the unit works, but I can scrape plastic off with my nail there whick causes me some concern.

Asthetics-
• My opinion is that this thing is big and ugly. It takes up quite a bit of space.

Would I recommend it? Yes if you want something that lasts, that you can clean, that works well and if you're willing to deal with the cleaning and wick replacement. Not if you're looking for something pretty, compact, and/or silent (I think it's pretty quiet, but not silent).
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845 people found this helpful
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Reviewed in the United States on August 16, 2018
Color: BlackStyle Name: HumidifierVerified Purchase
366 people found this helpful
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Reviewed in the United States on November 19, 2017
Color: WhiteStyle Name: HumidifierVerified Purchase
343 people found this helpful
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Top reviews from other countries

Road2018
2.0 out of 5 stars Mold grew on “antimicrobial” filter in less than three months
Reviewed in Canada on January 20, 2019
Color: BlackStyle Name: HumidifierVerified Purchase
Customer image
2.0 out of 5 stars Mold grew on “antimicrobial” filter in less than three months
Reviewed in Canada on January 20, 2019
The filter is advertised as treated with “Protec Antimicrobial that prohibits up to 99.99% of mold growth on the filter.” Mold grew on the filter in less than three months. The humidifier was cleaned regularly.
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Customer imageCustomer image
41 people found this helpful
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Ron S.
4.0 out of 5 stars Works well as long as the filter is in good condition
Reviewed in Canada on November 18, 2019
Color: BlackStyle Name: HumidifierVerified Purchase
22 people found this helpful
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Linda Wolynetz
1.0 out of 5 stars No automatic shut off
Reviewed in Canada on November 13, 2018
Color: BlackStyle Name: HumidifierVerified Purchase
19 people found this helpful
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Amazon Customer
4.0 out of 5 stars Filling the tank can be a challenge
Reviewed in Canada on January 9, 2020
Color: BlackStyle Name: HumidifierVerified Purchase
5 people found this helpful
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t
4.0 out of 5 stars Works well
Reviewed in Canada on April 21, 2021
Color: BlackStyle Name: HumidifierVerified Purchase
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