Honeywell Cool Moisture Humidifier For Bedroom, Medium Rooms, 1.1 Gallon, Invisible Moisture Humidifier for Baby, Kids, Quiet, Easy to Clean, UV Technology, Black, HCM350B
$84.99 Original price was: $84.99.$9.99Current price is: $9.99.









Honeywell Cool Moisture Humidifier is an easy way to bring invisible moisture to your home. Designed to bring you everyday comfort, it will add invisible moisture to the air to soothe a dry throat and dry, itchy skin caused by a heater, air conditioner or dry air climates. It’s a cool moisture humidifier with evaporative technology that increases, stops, and holds the targeted humidity level to optimize moisture in the room. UV technology helps treat the water for a cleaner mist, while the wicking filter captures minerals from the water to keep them out of the air. Featuring a large, 1.1 gallon, easy-fill, self-standing tank, this Honeywell humidifier provides up to 24 hours of run time, meaning it can run overnight without needing a refill. It’s the perfect humidifier for bedrooms, with a soft, fan-like sound to add restful noise to any room. Plus, It’s easy to clean as all parts that touch water are dishwasher safe. For best performance, use only a Genuine Honeywell Replacement Wicking Filter A. Compatible humidifier filter replacements are not guaranteed to offer the same performance or efficiency.
Humidifier for bedroom: As the ideal baby humidifier, this device has a soft, fan-like sound to add restful noise to any room; great for an adult or child’s bedroom, the large tank can run overnight, providing consistent soothing moisture
Use with Honeywell filters – For best performance with these cool mist humidifiers, use only a genuine Honeywell Replacement Wicking Filter A; compatible humidifier filter replacements are not guaranteed to offer the same performance or efficiency
Cleaner invisible moisture: this Honeywell cool air humidifier effectively brings invisible moisture to your home; it utilizes UV technology and a wicking filter to help treat the water and capture minerals for a cleaner mist
Everyday comfort: This room humidifier for bedrooms features evaporative technology that increases and holds the targeted humidity level to optimize moisture in the room; for everyday comfort and year-round dry throat and dry, itchy skin relief
Easy to use: Featuring a large 1.1 gallon, easy-fill, self-standing tank, this cool humidifier for bedrooms provides up to 24 hours of run time; plus, it’s easy to clean – all parts that touch water can be cleaned in the dishwasher
11 reviews for Honeywell Cool Moisture Humidifier For Bedroom, Medium Rooms, 1.1 Gallon, Invisible Moisture Humidifier for Baby, Kids, Quiet, Easy to Clean, UV Technology, Black, HCM350B
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Rinata –
Effective and Easy-to-Clean
Before this, we used an ultrasonic humidifier, which was certainly quieter but didn’t perform as well as this one, so it was a great upgrade for us.Noise: at its second speed, it sounds like an average house AC and does not interrupt sleep.Humidity: we have a 12×11 room, and it humidifies the space very effectively—you can feel the difference without needing a humidity meter.Ease of use: as simple as it gets.Cleaning: much easier than our ultrasonic humidifiers, which had many small spaces that were hard to clean. Cleaning this unit is very simple, though you should remember to flip the filter every night and replace it every month or two.Overall, it’s better than other humidifiers we’ve tried, and I definitely recommend it for small to medium rooms.
Reviewer –
Great filter
Great humidifier – works well. I don’t wake up with a dry throat/coughing anymore. Only problem is the filters have to be replaced monthly during the winter in our home and the replacement filters are expensive. One nice convenience is that the water tank lasts 2.5-3 nights so I don’t have to worry about filling it every night (or multiple times a night) as with some other humidifiers.Level three is too loud for me to sleep with, but I can usually keep it at level three before bed and then lower it to one right before bed through the night.
realifer119 –
Easy to fill and clean. Good for small room.
Works well in a small bedroom. Noise lever on low is acceptable for sleeping. Like the evaporator type since it doesn’t spew chemicals into the air. Using it with tap water and haven’t had any mineral depost build up yet. Seems well made. Easy to fill and clean.
C Smith –
8 years later
Well, here I am 8 years after purchasing mine looking to buy a second one, so I guess I should leave a quick review! We’ve run this thing for literally months at a time some years, using it well into spring because I get used to it as white noise. It isn’t loud, especially at the lower settings, but if you like a fan for sound, the medium or high level can serve that purpose. Humidity wise, it definitely makes a difference (we have a thermometer in our bedroom that also monitors humidity) and we need to add water each night. It isn’t a fog-your-windows humidity though, just a pleasant increase. The replaceable wicks are easy enough to get and its easy to clean and doesn’t need to be cleaned very often… it just gathers dust, though the wick gets nasty after a while, hence the need to change it.Anyways, the fan started making a weird noise the other night, so I am here to buy a replacement, and probably a second one for my son’s room. I may eventually open it up to see if it can be repaired, but its December, and I’m too busy to deal with that right this minute.
JRK –
It’s quiet
Quiet, Effective. Wish it had a larger tank as it empties in about 18 hours. But that means it is putting moisture in the air.
R –
I’ve bought so many humidifiers. This is the most reliable
Long story, but the takeaway is that I really like this humidifier.I had a white one of these that someone gave me for free. I had no idea what a great thing they’d given me. I liked how it worked, but didn’t like that it had a “filter” (really, more of a sponge) and I didn’t like how huge it was. So I gave it away and bought a newer-sleeker looking humidifier for myself. My new replacement humidifier was the ultrasonic type (ultrasonic are the other main type of humidifier: they vibrate imperceptibly and the vibrations send a fog of aerosols into the air, which you can see and is pretty). It was compact, it was all black with no blue/white/whatever to make it stand out. I loved it. I loved it for about three months until it broke. The handle came off while I was carrying the water container back from the sink. Water everywhere, gruesome scene. So, I bought another humidifier (my third). Again, it was the ultrasonic type (because those tend to be the cute, compact, black ones). . . and again it broke after a few months. Not so dramatically this time, just quietly started leaking one day (didn’t leak when I first refilled it, no. It waited until I’d left the room to begin leaking on an antique table. Oops). So, $150 later, I swore that I would never buy another humidifier again because the whole industry is garbage and all their products will betray you after the return period closes. Bummer.I lived in dry, cracking squalor for half a year before I finally broke down and went looking to buy another humidifier. Low and behold, my old trusty humidifier was back, in black (or nearly so — the water bin is a blue stripe on the side). Yes, it’s large. Yes, it has a filter that you have to replace (less often if you do it right). Yes, you can’t see a pretty fog of water coming out of it to prove it’s working. But I love it. It’s simple, has less moving parts, and doesn’t break. My parents have been using one of their own for a year and it’s done great by them.Tips:- If there is water in the bottom tray (touching the “filter”–which is actually serving more as a sponge), keep the fan blowing. Don’t let the filter sit in water. This will generally prevent the filter from getting moldy, so you won’t have to replace it very often.- If there is no water in the bottom of the tray (the water has run out) — stop the fan. Otherwise the fan heats the filter so much that the filter begins melting. Especially if the fan is on the highest level (I haven’t tested, but I think maybe it doesn’t get so hot at the lowest level).- This does get a little tough, to hit the sweet spot. It means when I leave the house, I either make sure the water is filled all the way and the fan on or that the water is gone from the bottom tray and the fan is off.- Open it up occasionally and look at the filter. You’ll notice that it does yellow a little from when it gets too hot from the fan. I think this is OK. If you check it semi-regularly, you’ll be able to see this and know the difference between this and any ick that would require you to replace the filter.- If you use an ultrasonic humidifier, you have to be careful about what surface you put it on because that surface gets a little wet. This humidifier is a mist humidifier, so the effect is slower but its physical reach is larger. So, that means that you can put the humidifier on any surface and it won’t get that surface wet.- I use tap water.
Brendan Jackson –
Used this for my bedroom and I really like it because it’s not a warm air humidifier as I often get too hot whilst sleeping. Nice and quiet on the low setting for sleep. Can make the room a little colder feeling from the humidified air in the colder days but I have been waking with clearer breathing since starting to use it. I bought a thermometer/hygrometer as well to keep an eye on the temperature and humification and on the high setting it humidifies the room quite quickly (3.5m sq room)
Ashok yadav –
Honeywell warranty not available in India on humidfier. The seller is a real fraud, i dont think the items imported are used ones…The humidifer stoped working within 5-6 nights only… seller took it from me for refund, its been more than 20 days and no call/reund from seller… its really disheartening, after buying the premium product i have to face such an experience….The seller is a real fraud… pls dont buy… its a clear recommnedation from my experience.Otherwise, be ready for such an experience. Choice is yours because the money is yours..Anyways the filter turned yellow within 2 days of use (that too after i used only mineral water).
Ron S. –
This review is based on use over a full winter season of this version of the HCM350 with the internal UV light that is supposed to kill 99% of bacteria, mold, etc.The humidifier was used in a ~130 square foot bedroom during the winter with forced air heating. It was able to effectively raise relative humidity from 20-25% to 40-50%, depending on the speed setting used. We typically had it on the lowest setting for gentle white noise at night; humidity levels averaged in the high thirties to low forties.We live in a hard water area and initially contemplated using distilled water, but at a cost of about $1/gallon and the use of about one gallon per night for the bedroom would quickly exceed the cost of a couple filters. We used tap water and the filter eventually developed a light brown, crusty appearance along its edges, even when flipped daily with each reservoir refilling. This was due to iron and hard water, not due to mould. To prolong filter life, we used two filters during the season on a rotating basis. One in use while the other soaked in a strong white vinegar & water solution until needed. The vinegar solution was effective at removing the hard deposits, but was never able to quite restore the filter to ‘like new’ appearance (we didn’t try bleach, which might also be effective for those complaining of mould). But this pretty much maintained effectiveness. IIRC, we rotated the filters probably every couple weeks. Eventually the filters lost some structure and were replaced for this winter, but two for a full winter season seemed fairly reasonable. The humidifier was used every night and rarely sat idle longer than 12 hours, therefore can’t comment on how the filter would handle being left in a wet but unused state for prolonged periods, which probably isn’t ideal. We felt the lack of auto shutoff was not a major problem because it’s effectively just a fan inside an enclosure (though there’s also the UV light, which apparently has a finite lifespan).We did not have any problems with the glued seams of the replacement filters breaking, though we were careful not to put much stress on this area when in the vinegar soak, or while handling during the rinse process. That said, compared to the original filter included with the humidifier, these seemed to be slightly thinner walled.Overall, it works for us and we continue to use it this winter season.
hometechie –
Pretty simple design and construction, which is good (the less complex, the easier it should be to maintain). Water tank has a wide mouth and is easy to refill. Most hands won’t fit through the mouth to scrubs the inside of the tank, but you can quickly disinfect it with a diluted bleach solution with no scrubbing. UV light is an interesting feature – I’ll wait to see how effective it is in the long-run by observing if the plastic exposed to the UV light discolours over time.I live in an area with really hard water so the filter was quick to discolour, but I try to briefly rinse it out between tank refills to help with it.I live in a condo that’s just under 600 sq. ft. I bought one unit hoping it’d be enough, and it helped raise my condo’s humidity level from 39% to 45%, but it’s not steady and will drop from time to time, meaning one of these units isn’t enough to keep my condo at a good humidity level. So I’m now buying a second one! Cold Canadian fall and winter seasons really take a toll.I really like that the unit is stylish (compared to other humidifiers out there). It’s pretty quiet – my current unit is sitting on my nightstand next to my bed and I can keep the fan on the medium setting with no issue. It is audible on the high setting so I’d avoid that when trying to sleep. The one feature I wish this unit had was auto-shutoff when the tank is empty so that I don’t need to worry about it, but I tested running the unit on high for 8 hours straight and there was still ~1/6th of the tank left, so it should be fine to leave on while you’re at work if you’re out of the home for 9-10 hours.20/10/2018 UPDATE: my one unit is starting to struggle now as the weather gets colder and drier. Even on the high fan setting, it’s not able to raise the humidity past 37%. So one unit won’t be very effective in a 600 sq. ft. space. Very much hoping the 2nd unit will get the humidity up when it arrives.02/11/2018 UPDATE: with 2 of these units running for a week now (with one always on high and one always on medium), I’ve been able to maintain 41-44% humidity in my condo. Kind of disappointing to be honest, and I’m worried when the real winter hits in a couple months, these units will be very ineffective.One trick I did pick up to help with reducing the amount of mineral build up and hardness on the filters is to flip the filters to the other side once a day. Since I started doing this, I’ve noticed the mineral discolouration (from build up) on the filters are noticeably less, and the filters don’t feel as hard.
Ben Harapiak –
This is a fantastic humidifier. It is very easy to clean as long as you use common sense and check it every couple of weeks. The wick does require descaling if you want to use it for more than two weeks and any kind of descaling agent will do. I generally replace my wicks after 4 weeks of use. If you have hard water, you might have to do it more often, just be prepared. Noise is minimal as it is simply a fan running it, and I find on the medium setting I am getting good humidification without too much noise. Because it is an evaporation humidifier, there is no white dust settling from its use. Absolutely no issues with mould forming, most likely because I leave it running all the time and there is no standing water.