Name: Honeywell UV Cool Moisture Germ Free Humidifier, HCM-350B
Brand: Honeywell
SKU: HCM-350B
Price: 69.95 USD
Availability: InStock
Rating: 4.8 (39 reviews)

Germ-free, cool moisture for temporary relief of dry air discomforts

Availability: In Stock

Regular: $89.95
Price: $69.95
You Save: $20.00

- 39 Customer Reviews

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Honeywell UV Cool Moisture Germ Free Humidifier, HCM-350

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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 Dimensions (LxWxH):17.48 x 9.37 x 11.85 in.
Product Weight: 8.36 lbs.
Evaporative humidification technology
Designed for medium rooms
Runs up to 24 hours per filling on low setting
Energy Usage: 60 watts
1.1 gallon tank capacity
3 year limited warranty
Uses HAC-504 series replacement Filter A
Uses Protec Continuous Cleaning Cartridge: PC2V1

Product Specs

UPC:

092926203504

MPN:

HCM-350B

Write A Customer Review

4.8

Average score based on 39 reviews

Nice humidifier

Reviewed: 11/19/2019 by Jeff Rust

I read several good reviews of this product on websites that I trust, so decided to order one. We're very pleased with it so far, it preforms as advertised and I'd recommend it to others.

Great Humidifier!

Reviewed: 11/19/2019 by John Dover

I purchased this humidifier several years ago then purchased this one for my son. He is enjoying the moist air in his home. Great product!

Pleased

Reviewed: 11/12/2019 by Michel Mealo

This unit is very easy to maintain, but I noticed the filter is tinted light brown on the fringes after 3 days of use with distilled water in a well maintained, clean home. I will need to research that, thus the 4 stars.

Great product

Reviewed: 11/05/2019 by PJ Matthews

Quick delivery, well designed, all around great humidifier.

Humidifier

Reviewed: 10/11/2019 by Diane OBrien

Works well. I have it in my bedroom and it really helps me to sleep better and not wake up several times to drink water. The only thing I would like to see is more output at lower speeds. The quietest speed, the one they say is for sleeping, does not put out enough humidity to help. It has to be on the number 2 speed at least to work well. I have learned to sleep with the extra noise because the 2nd speed is the lowest you can go and still get a good output.

Air Humidifier

Reviewed: 10/03/2019 by Sarah Hallett

very effective plants will let you know how actually humid the air is!

Reviewed: 10/03/2019 by Gabrielle Welch

Happy with my purchase so far. The unit is huge, but sleek looking. Quiet on the low and medium settings, cannot see the mist coming out. Got the Protec cleaning cartridge and threw one in the bucket. Looking forward to having this going in the bedroom while sleeping in the dry Colorado winter.

Best around!

Reviewed: 03/05/2019 by ali distel

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

Nice 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!

Pretty cool machine

Reviewed: 02/26/2019 by Morgan Wood

It helps and is easy.

ibfife

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.

Excellent 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.

Good 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.

Very 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!

Nice 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.

Excellent 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.

Very 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.

Nice, 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.

Works 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.

Best 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...

Easy 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%.

Sleek design

Reviewed: 02/26/2018 by Andrea Murphy

Can't wait to try this product

Solid and effective

Reviewed: 01/21/2018 by James Clark

It humidifies our 288 sq. ft. bedroom well. Highest fan setting is noisy, med. is white noise, low is almost silent. We use it on med. Nothing to say on reliability as we have had it only a week.

real good very happy

Reviewed: 01/10/2018 by john maccarone

great product

HCM-350B

Reviewed: 12/21/2017 by Stephen Sager

I bought this Humidifier because I was having problems with my eyes going dry at home. Eye drops were not enough. It made a difference the first night I used it. The machine is very quiet to me on high for when I put it on low I cannot even hear it. It works very well for me.

Humidifier

Reviewed: 12/21/2017 by KRISTIN WOLFRAM

The Honeywell 350B humidifier is very effective at improving humidity levels in your home during the dry winter months. Mine has made a big difference in the comfort of my home.

Very quiet!

Reviewed: 12/11/2017 by Candace Gregoire

I bought this for my bedroom and it works very well, keeping the humidity level between 40-50%. The tank is very easy to fill and has a large opening for cleaning. I run it on low at night and can hardly tell it's on, it's so quiet. I run it on high during the day and will use most of a tank of water. I've only had it for a couple of weeks now, but so far, I am very happy with this unit.

Reviewed: 10/06/2017 by stebin

Good.

Reviewed: 07/03/2017 by Tim Sovold

Quiet humidifier and easy to fill water reservoir but only 1.5 gallon so need to fill 2X per day. Seems to work well for large bedroom.

Great for large Areas

Reviewed: 03/31/2017 by Elizabeth Cabrera

I have this on the lower level of my town home. I keep a humidistat to monitor how well it keeps the humidity up and within range. This does a great job!!! Took me a while to adjust to the exact range I wanted, but a quick learning curve

Great Product

Reviewed: 03/23/2017 by daniel ruscillo

Great product works like a charm!

Reviewed: 03/21/2017 by Mark Germann

Works great. Nice low sound, drowns out street noise but not loud at all. Moisturizers air perfectly. Thanks!

After 2 weeks use

Reviewed: 02/22/2017 by Frederick Balling

I bought this for our bedroom, and I could tell the difference immediately after we started using it. Its not as quiet as Id like, but the noise level is certainly tolerable. Its too early to tell if there will be maintenance problems.

Reviewed: 02/14/2017 by Elizabeth Cabrera

I have bought several humidifiers in the past. This is the first one that I found fit all my requirements. 1 Effective 2 Very Quiet 4 Easy to fill 3 And VERY easy to clean. This really does make a difference for me - for breathing and my eyes.

Reviewed: 02/11/2017 by Cecily Frazier

The Honeywell Humidifier HCM-350B is very quiet. On the lowest setting you cannot even hear it, although we needed to use the second setting to get the humidity up to 45% in our small bedroom. The water lasts 2 nights sometimes more before needing to be refilled which is a nice feature. It is easy to fill and carry the water holder, however it is too big to use the smaller bathroom sink to refill it, which means a trip to the kitchen. Overall, it is just what we were looking for and were very happy with it so far about 2 weeks of use.

Reviewed: 12/14/2016 by Chris

Very good humidifier. Very silent and doesn't wet the floor like my previous humidifiers.

Excellent Ptroduct

Reviewed: 12/12/2016 by Karen Ingram

I have used Honeywell products over the years and this one is terrific. It provides moisture in a very dry bedroom.

Reviewed: 11/15/2016 by mark Scott

Very good item

Reviewed: 07/04/2016 by Sylvia Siegel

I love this humidifier. Have the same item in white. Am so pleased with it.

LOVE THIS!!

Reviewed: 06/01/2016 by Brooke Furniss

I have purchased multiple humidifiers, and this one is #1 in my book! It is quiet, doesn't leave a film, does it's job, sanitizes as it works, pretty much it is everything you want in a humidifier and then some. I bought another one after buying this one. HIGHLY recommend!

Looks sleek and works well

Reviewed: 05/06/2016 by Whitnee Jackson

This is one of the few humidifiers I was able to find in black, and also one of the most highly reviewed. I am very satisfied with the moisture it provides. On the highest setting it is somewhat loud, but the sound is not annoying. It is even effective as white noise for sleeping, in fact. I am able to run it on high for two nights with one fill of the tank. I am very happy with this purchase.

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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.

Honeywell HCM-350B Manual

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