Name: Honeywell UV Cool Moisture Germ Free Humidifier, HCM-350B
Brand: Honeywell
SKU: HCM-350B
Price: 73.45 USD
Availability: InStock
Rating: 4.9 (57 reviews)

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

Availability: In Stock

Regular: $89.95
Price: $73.45
You Save: $16.50 (18% Off)

- 57 Customer Reviews

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Honeywell UV Cool Moisture Germ Free Humidifier, HCM-350

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Features
Description
Details
Healthy Humidity Benefits
Reviews
FAQs
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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 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

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.

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

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.

Write A Customer Review

4.9

Average score based on 57 reviews

Excellent

Reviewed: 09/16/2020 by Cade Lowry

I am a huge fan of this humidifier. It is one of the best on the market! No Doubt!

Reviewed: 07/24/2020 by Lawrence Graham

have not had the occaission to use yet

A Wonderful Product!

Reviewed: 06/01/2020 by Harriette Einolf

The humidifier was easy to set up and very easy to refill. All three settings, even the most powerful one, did not disturb my sleep. I have noticed the improvement that sleeping with the humidifier makes: no itchy, dry eyes, less dry skin and even an improvement in my nose getting more humidity - more physical comfort over all.

EASY SETUP!!

Reviewed: 05/27/2020 by Diana Yruegas

I really appreciate how easy the setup is. This is my first humidifier and even though Id researched before purchasing, you never quite know until you open the box. One thing I wish Id realized beforehand was the spacing needed for the setup. I live in a small apartment and it wasnt easy to find a spot that would allow me to have the machine a foot away from the wall and 4 feet away from the bed, and up not on the floor to make sure theres good air circulation. And also the need for a tray underneath the unit. I realized once I opened the box, and read the manual I saw that the large print, they take no responsibility for water damage on furniture. That's fine and reasonable - I just wish I'd known that ahead of time because finding an suitable tray to fit underneath the unit wasn't an easy task - especially with having to online shop. I'm not sure if Honeywell has ever considered it, but offering a black tray with a 1 lip all around, would be a great thing. I would have added that to my purchase vs having to hunt one down before setting up its taken me a month to find one.

Reviewed: 04/20/2020 by Sherry Chiou

quite.

Reviewed: 04/20/2020 by Michele Johnson

Love it has helped allergies and respitory virus

Great product

Reviewed: 04/20/2020 by Peter Mathis

Great comfort having a humidifier that both filters the water as well as having a UV light to make the water as clean as possible before vaporizing it. Appreciate that it has 3 speeds and is fairly quiet too. Overall, very happy with it.

Best Humidifiler

Reviewed: 04/20/2020 by Gregory Evstegneev

After checking reviews on line I found this product and let me tell this is best Humidifier I ever had,quite,easy set up and most important UV germ free protection.Great product!

Its so perfect!

Reviewed: 04/06/2020 by Charles Borja

Honeywell is the name you can really trust 100%! The humidifier really helps our sleep so smooth!

All day humidity

Reviewed: 03/22/2020 by Ian Grace

On the lowest setting this will run all day on a full tank which is good for maintaining a base humidity. The highest setting will still run for several hours. This a big improvement over my previous humidifier and the benefits are noticeable especially during winter months. I've had it for two months with no issues. Regularly cleaning the filter is probably a good idea. I take it out and let dry once a week. I run it through water before putting it back.

Excellent Relief

Reviewed: 03/17/2020 by Edmund Fischer

Works like a charm! Easy to use and quickly brought up humidity levels to where they needed to be. Great Relief.

LOVE IT!

Reviewed: 01/29/2020 by Felicia Yauch

This is the BEST humidifier on the market for hard water in my opinion. Daily/Weekly cleaning is very minimal and its pretty quiet. I live in a decent-sized studio apartment and it keeps the humidity steady. When I first turned it on, I turned it to high because the humidity was 18%. After about an hour and a half, it was up to 52%, so I switched it to low. I can keep it set to low all day and night and the humidity will stay around 42-45%, it's wonderful. The difference was tremendously noticeable after just the first night. I woke up with a clear nose, I slept with my mouth closed, my eyes weren't itchy and red I have severe dry eyes and skin, and my head didn't ache. Definitely get the humidity monitor with digital display, as well as the antimicrobial cleaning cartridge, and change the filter every 30 days. I have had this for a month and there is no slime in the base, nor is there the stale/moldy smell that was typical in humidifiers I had before. The tank and base are completely separate from the machine, so the chance of mold and mildew building up seems next to impossible to be able to occur. I don't have a dishwasher, so every week I wipe the base and tank with vinegar and it works just fine. I pour a decent amount of vinegar into the tank and shake it vigorously without the cleaning cartridge and after rinsing both the tank and base thoroughly, there is never a lingering smell of vinegar. Do NOT waste your time researching humidifiers, this is hands down the best one out there for hard water! I am not certain if its meant for filtered or distilled water, but if it is, get it!

Very Satisfied

Reviewed: 01/24/2020 by Mahlon Fiscel

The HCM-3508B was easy to set up, has performed very well, and is easy to clean

Terrific product

Reviewed: 01/06/2020 by Ian Evans

This product keeps the air in my 20x20 bedroom just right and I barely notice it running on low and moderate setting. It is audible at the highest setting but it is a soothing whir. Best of all, no more dry, cracking skin or bloody noses in the morning! I wouldn't say that it is completely going to eliminate the white powdery residue in your house unless you use filtered or distilled water but it makes a huge difference compared to many other comparable units.

Reviewed: 12/19/2019 by Robert Genn

better than expected, quiet and does the job

Reviewed: 12/03/2019 by Chris Rodriguez

Not as quite as I thought it would be

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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Write A Review For This Product

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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