Honeywell UV Cool Moisture Germ Free Humidifier, HCM-350

  • Honeywell UV Cool Moisture Germ Free Humidifier, HCM-350
  • Honeywell UV Cool Moisture Germ Free Humidifier, HCM-350
  • Honeywell UV Cool Moisture Germ Free Humidifier, HCM-350
  • Honeywell UV Cool Moisture Germ Free Humidifier, HCM-350
  • Honeywell UV Cool Moisture Germ Free Humidifier, HCM-350
Germ-free, cool moisture for temporary relief of dry air discomforts
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Regular: $99.95
Price: $74.95
You Save: $25.00 (25% Off)
Color Options: White
  • Patented germ killing process continuously kills up to 99.9% of water-bred germs, bacteria, mold and spores in the water
  • QuietCare Technology is up to 25% quieter than similar evaporative humidifiers
  • Soothing, invisible moisture to relieve dry air discomforts
  • 3 speed settings to adjust moisture output and sound level
  • Easy to fill, clean & carry
    • Wide tank opening
    • Dishwasher safe water tank & tray
    • Large recessed tank handle
  • Integrated break resistant water tank
  • Self-regulating evaporative system
  • Room Size: Medium
  • Moisture Type: invisible cool moisture
  • Run time per filling: up to 24 hours
  • Tank Capacity: 1.1 gallon
  • Uses HAC-504 series replacement Filter A
  • 3 year limited warranty

99.9% Germ Free Humidifcation

The Honeywell UV Cool Moisture Germ Free Humidifier is efficient in establishing a clean breathing environment. The use of a patented UV germ killing process allows this cool moisture humidifier to steadily eliminate up to 99.9% of bacteria, mold, fungus, and virus in the unit's water. Releasing cool, filtered invisible moisture into the air via QuietCare Technology, this germ killing humidifier provides a 25% quieter experience when compared to other evaporative humidifiers. 

Incredibly versatile by design, this Honeywell UV Cool Moisture Germ Free Humidifier comes with 3 speed settings that will allow owners to adjust moisture output and sound levels. Accessibility remains an integral design feature as this portable humidifier excels on multiple fronts. Featuring a break resistant exterior, the water tank can be conveniently reached via a wide opening. The tank itself also includes a handle that will allow you to easily remove the tank to refill and clean when necessary. This portable humidifier’s tank and tray are dishwater safe. Weighing less than 9 lbs. as a whole, the Honeywell UV Moisture Germ Free Humidifier is an ideal fit for medium sized rooms and is capable of running up to 24 uninterrupted hours per filling.

Genuine Honeywell Wicking Filter A

This cool moisture humidifier works with Honeywell Replacement Filter A. Designed for optimal moisture output and inhibiting up to 99.99% of mold growth on the filter, this Genuine Honeywell Humidifier Wicking Filter captures minerals from the water and helps prevent the buildup of white dust. The updated version of the Honeywell Replacement Filter A features a blue pre-filter layer that helps capture large airborne particles from the air that passes through the filter.

Protec Antimicrobial Cleaning Cartridge

The Honeywell UV Cool Moisture Germ Free Humidifier can also use Protec Humidifier Cleaning Balls. Protec Antimicrobial Cleaning Cartridges feature a patented antimicrobial, Aquastat that continuously works to hinder the growth of bacteria and mold. They're also capable of preventing the buildup of slime in the water and humidifier surfaces. Protec Antimicrobial Cleaning Cartridges work in all humidifiers and are safe/non-toxic. Aquastat contains no harsh chemicals or harsh acids making the cleaning action just as gentle as water on your humidifier surfaces and components.

Product Details
  • Product Dimensions (LxWxH): 17.9 x 9.37 x 11.4 in.
  • Product Weight: 8.36 lbs.
  • Evaporative Humidification Technology
  • Moisture Type: Cool Moisture
  • Room Size: Medium
  • Run Time: 24 Hours on Low Setting
  • Tank Capacity: 1.1 Gallons
  • Energy Usage: 60 watts
  • 3 Year Limited Warranty
  • Uses HAC-504 Replacement Filter A
  • Uses Protec Continuous Cleaning Cartridge: PC2V1
Product Specs

Helps Temporarily Relieve Dry Air Discomforts

  • Provides an efficient solution for counteracting the effects of dry harsh winter air by adding essential moisture to any room. Soothe dry skin with added moisture so hands and lips are no longer dry.

Helps temporarily Relieve Congestion and Cough

  • Maintaining an indoor humidity level between 40-60% can reduce the survival of flu viruses on surfaces and in the air.*
  • *Studies have shown that keeping indoor air at an RH level of 40-60% reduces survival of flu viruses on surfaces and in the air compared to lower RH levels.

Helps You Breathe Better and Sleep More Comfortably

  • Comfortable humidity helps purify the air and keep throat and nasal passages hydrated. This can help you breathe better and sleep more comfortably.

Helps Protect Wooden Furniture, Floors and Musical Instruments

  • Low humidity causes wood to lose moisture and shrink. Extreme changes can causes warping and cracking.

Helps Keep Indoor Plants Healthy

  • Symptoms of dry air include curled leaves and dry leaf tips. Flower buds may even turn brown and fall off. Using a humidifier can help return moisture to the air promoting improved plant growth.

Helps Reduce Static Electricity

  • Static electricity is even more active when the air is dry, especially in the cold months when people turn on their heat. Returning moisture to dry air assists in reducing static shocks and static cling.
Q: I hear the fan turning, but I don't see any mist. Is my humidifier operating properly?
A: Dry air is pulled through the system and a fan disperses invisible, moisture balanced air. There is no "mist" emitted. When operating normally, you will feel only cool air coming from the unit. Monitor the water level in your Tank/Base. If you notice a decrease in the Water Tank over 24 hours then the unit is operating normally.

Q: My unit has been running for several hours. I hear the fan spinning, but I do not notice the water level in the tank decreasing.
A: First, check the filter to ensure it is wet. If the pad appears dry, remove it from the Base and gently rinse under cool water. Reposition wet filter in the Base. You may also want to note the current moisture level in your home. If the humidity level is over 60% the unit will not put out much moisture as your air is already saturated. Also verify the upper enclosure and water tank are properly seated.

Q: My filter has turned light brown and rust colored. Do I need a new filter?
A: Probably not. Since your filter has been made with Protec antimicrobial, the change in color indicates only a mineral deposit. Soak filter in a sink full of cool water to help break up deposits. The discoloration may remain but will not affect the humidifier's performance.

Q: My humidifier doesn't appear to be as clean as when I first purchased and/or I'm smelling an unpleasant odor. What should I do?
A: You probably need to replace your Protec Antimicrobial Cartridge. This cartridge helps your humidifier stay cleaner, longer and helps freshen the mist. If you have been using your humidifier regularly for over 30 days replace the Protec cartridge and follow the cleaning instructions.

Honeywell UV Cool Moisture Germ Free Humidifier, HCM-350 Videos
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Customer Reviews

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Average score based on 115 reviews

Rating: 4.9/5Rating: 4.9/5Rating: 4.9/5Rating: 4.9/5Rating: 4.9/5
Honeywell UV Cool Moisture Germ Free Humidifier, HCM-350 Reviews

Rating: 5/5Rating: 5/5Rating: 5/5Rating: 5/5Rating: 5/5Wife and mother

Reviewed: 07/16/2021 by Carol

I love this product! I have had it a year now! It's very easy to use and clean! I highly recommended this product!

Rating: 4/5Rating: 4/5Rating: 4/5Rating: 4/5Rating: 4/5Solid solution and well made

Reviewed: 03/31/2021 by Mike

Easy to use, works very well, only gave a 4 because I haven't had it long enough to give a 5 since I want to see reliability/consistent performance in numerous conditions first.

Rating: 5/5Rating: 5/5Rating: 5/5Rating: 5/5Rating: 5/5Honeywell HCM-350

Reviewed: 02/09/2021 by Elzbieta Swiercz

Excellent and quiet humidifier. I've been very happy with my purchases from Honeywell.

Rating: 5/5Rating: 5/5Rating: 5/5Rating: 5/5Rating: 5/5Honeywell Humidifier

Reviewed: 01/01/2021 by Thomas Nowak

The quietest humidifier we have used. Easy to refill.

Rating: 5/5Rating: 5/5Rating: 5/5Rating: 5/5Rating: 5/5Worth every penny

Reviewed: 12/25/2020 by Robert Fahr

The tank is easier to fill than other models. It's also larger than most. When you fill it every day this makes a difference. I have to replace the filter about every two months because of the hard water where I live. Most tanks and bases are not dishwasher safe. This is another plus versus other models. If I can find any fault it's a bit bulky vs the last one I owned. The upsides are worth the trade off. Breathe better and bye bye dry winter skin.

Rating: 3/5Rating: 3/5Rating: 3/5Rating: 3/5Rating: 3/5Doesnt shut off when its empty

Reviewed: 12/15/2020 by Susan Gaines

The price is good, but the fact that it doesn't shut off when it's empty is a problem. I fear it will put extra wear and tear on the motor. I am not there every day and therefore, can't monitor it.

Rating: 5/5Rating: 5/5Rating: 5/5Rating: 5/5Rating: 5/5Love

Reviewed: 12/01/2020 by Kirsten

Love that its dishwasher safe! Wish the filters were less expensive. Works great-- mine's two years old and no problems.

Rating: 5/5Rating: 5/5Rating: 5/5Rating: 5/5Rating: 5/5Works Well

Reviewed: 11/27/2020 by Anne Mooney

Easy to clean and refill, works well. Recommend.

Rating: 5/5Rating: 5/5Rating: 5/5Rating: 5/5Rating: 5/5

Reviewed: 10/19/2020 by Elaine Bisceglia

,I would give it a 5 very good. It is helping my dry eyes

Rating: 5/5Rating: 5/5Rating: 5/5Rating: 5/5Rating: 5/5Better than my other one

Reviewed: 09/14/2020 by Hannah Portell

I don't know how to clean the fan blades...area inside the fan, but I like how easy it is to take apart the bottom and to clean it. I haven't tried putting it in the dishwasher yet. I use distilled water so it's easier to clean. I'll see how long it lasts

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