Honeywell UV Cool Moisture Germ Free Humidifier, HCM-350B

  • Honeywell UV Cool Moisture Germ Free Humidifier, HCM-350B
  • Honeywell UV Cool Moisture Germ Free Humidifier, HCM-350B
  • Honeywell UV Cool Moisture Germ Free Humidifier, HCM-350B
  • Honeywell UV Cool Moisture Germ Free Humidifier, HCM-350B
  • Honeywell UV Cool Moisture Germ Free Humidifier, HCM-350B
Germ-free, cool moisture for temporary relief of dry air discomforts
Availability: In Stock
Regular: $89.95
Price: $64.95
You Save: $25.00
  • 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 30% 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
The Honeywell UV Cool Moisture Germ Free Humidifier is efficient in establishing a clean breathing environment. Self Regulating Evaporative Technology has made this unit capable of eliminating up to 99% of bacteria, mold and various other harmful allergens in the water. 25% quieter than rivaling humidifiers, this model releases cool, filtered invisible moisture into the air. 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. The inclusion of a Break Resistant water tank simplifies the filling and cleaning process. 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.
Product Specs
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Average score based on 34 reviews

Rating: 4.85294117647059/5Rating: 4.85294117647059/5Rating: 4.85294117647059/5Rating: 4.85294117647059/5Rating: 4.85294117647059/5

Rating: 5/5Rating: 5/5Rating: 5/5Rating: 5/5Rating: 5/5Best around!

Reviewed: 03/05/2019 by ali distel

I've used different humidifiers, this one is by far the best!

Rating: 5/5Rating: 5/5Rating: 5/5Rating: 5/5Rating: 5/5Nice humidifier

Reviewed: 02/28/2019 by Jody K

I switched from a vapor humidifier to this one where you do not see the moisture, and I have to say, it is a bit tricky at first to know if it is working. I can tell you, though, that once the filter started to get old, I did notice the air getting drier and there was less water being used up in the tank. I do recommend this item - also it is nice to not have any moisture damage from normal humidifiers. Just a word of wisdom - be weary when buying replacement filters. There are a lot of fakes out there that are nowhere as good as the genuine Honeywell filters!

Rating: 5/5Rating: 5/5Rating: 5/5Rating: 5/5Rating: 5/5Pretty cool machine

Reviewed: 02/26/2019 by Morgan Wood

It helps and is easy.

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

Reviewed: 02/19/2019 by Debbie Fife

Every time I touch something, it would shock me. This machine has good reviews so I tried it. I was surprised at how quickly it worked. The only thing it doesn't do, is notify you when you need to refill the canister. Quiet running too.

Rating: 4/5Rating: 4/5Rating: 4/5Rating: 4/5Rating: 4/5Excellent with one flaw

Reviewed: 01/24/2019 by Anne Wiese

The humidifier works really well, and is wonderfully quiet and unobtrusive especially on the lowest setting. The one flaw I have found is that if you don't run it continually, 24-7, the filter begins to dry out immediately, and prevents the machine from dispensing mist. I had hoped to run it only overnight, but that will not be possible.

Rating: 5/5Rating: 5/5Rating: 5/5Rating: 5/5Rating: 5/5Good Product

Reviewed: 12/26/2018 by Jon Drogt

We have used the Humidifiers for a week. It works as stated and was easy to set up. Your personal tolerance of white noise and how close you can site your humidifier to the proximity of your head will determine the degree of how well moisture is provided. This statement is based on one of our humidifiers being operated close and another being placed about 5 feet away. The fan speed was set a medium for both humidifiers. Do not expect them to humidify a large room. Based on this same product being operated in a different household for about a month, I am a little concerned about the amount of filter replacement that may be required. Yes, soft water is being used but mineral and fine Iron residue is being trapped on the filter quickly. I have rinsed the filter once but not sure about multiple cleanings.

Rating: 5/5Rating: 5/5Rating: 5/5Rating: 5/5Rating: 5/5Very Happy!

Reviewed: 12/23/2018 by Gilberto De lara

Arrived as promised and works very well. Easy to add water. I'm amazed at its efficiency and simplicity. Will recommend!

Rating: 3/5Rating: 3/5Rating: 3/5Rating: 3/5Rating: 3/5Nice humidity, a little bit of white noise

Reviewed: 12/12/2018 by Connie Baron

Okay for the price. Humidity super nice. On high though, it makes noise.

Rating: 5/5Rating: 5/5Rating: 5/5Rating: 5/5Rating: 5/5Excellent product

Reviewed: 12/12/2018 by GLEN MATTHEWS

One of the best Humidifiers I have found. I have had several over the years but this HCM-350 is absolutely one of the best. Fast delivery, excellent product and so easy to use.

Rating: 5/5Rating: 5/5Rating: 5/5Rating: 5/5Rating: 5/5Very effective

Reviewed: 10/15/2018 by Paul Williams

This is our second time using this model. Use in larger room. We live in Colorado where humidity is typically around 30%. Very effective in eliminating static shocks and dry nose. Barely hear the unit. We definitely recommend.

Rating: 5/5Rating: 5/5Rating: 5/5Rating: 5/5Rating: 5/5Nice, compact humidifier

Reviewed: 04/11/2018 by Charlene Fluder

So far have only had it about a week now this humidifier does just what I need it to do---increase humidity in my hallway where my classical guitars hang on the wall and kitchen. It's easy to use and will be easy to clean, given the simplicity of its design.

Rating: 5/5Rating: 5/5Rating: 5/5Rating: 5/5Rating: 5/5Works for me!

Reviewed: 04/11/2018 by Joan McDougall

Had a problem with my ultrasonic humidifiers: new cat was knocking them over. So decided to try an evaporative humidifier and this one looked good on paper. It's quiet, even on the high setting, and I no longer have headaches from dry air--which is the main reason Ive had humidifiers since the 70s. It looks good and while the cat occasionally moves it, most of the time he leaves it alone. The only problem is the tank is on the small size and I have to frequently refill it. May eventually get a larger one, but will most likely get Honeywell again.

Rating: 5/5Rating: 5/5Rating: 5/5Rating: 5/5Rating: 5/5Best Humidifier

Reviewed: 02/28/2018 by Jayna Denton

I've been using Honeywell products for a long time and I've never had any problems with their products. This humidifier has the easiest mess free water reservoir to fill & cleaning & changing the filter is a breeze. it's so quiet and works so efficiently...

Rating: 5/5Rating: 5/5Rating: 5/5Rating: 5/5Rating: 5/5Easy to clean!

Reviewed: 02/26/2018 by Patricia Wallen

Love these humidifiers. They are so easy to clean and they work really well. Our humidity hasn't dropped below 60%.

Rating: 5/5Rating: 5/5Rating: 5/5Rating: 5/5Rating: 5/5Sleek design

Reviewed: 02/26/2018 by Andrea Murphy

Can't wait to try this product

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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.

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