Honeywell - Cool Moisture Humidifier HCM350B

We have an ultrasonic in our bedroom and a matching one in our home office. We use distilled water. It's cheap and makes maintenance a snap. I had one of the big evaporative ones years ago and it was a PITA.

The model we have is discontinued, but it's somewhat similar to this one. [https://www.amazon.com/Honeywell-HCM350B-Germ-Humidifier-Black/dp/B00FJTVHKO/ref=sr\_1\_2](https://www.amazon.com/Honeywell-HCM350B-Germ-Humidifier-Black/dp/B00FJTVHKO/ref=sr_1_2)

I got the white version of the Honeywell HCM350B, kind of expensive at like $70-80 but I bought mine in 2019 and it's still going strong. I chose it based on a Wirecutter article that pointed out how easy it is to clean everything, including the tank.

This is what i use. It's cool mist with a uv light which to be honest ti should check to see if it's burnt out. I like that it's cool mist. It has a filter. And with the fan it doubles as my white noise machine https://a.co/d/gFZLxJJ

Mine are disposable. I have both an evaporative humidifier (Vicks Warm Steam) and a cool mist (Honeywell HCM350). I soak the cool mist filters in vinegar, and soak the evaporative motor/filter part in about 4-5" of vinegar. Removes mold and mineral buildup from both.

Those Honeywell filters are NOT cheap! I got tired of paying $25-30 for 6 filters that you're supposed to change every month. Soaking them in vinegar allows me to get up to 3 months from each filter.

I started soaking my filters in vinegar. It dissolves all the buildup, and I get twice as much life out of them.

i got the honeywell hcm350 but don’t know if it will be good enough!

it’s okay! it works and does help with humidity but i wish it had a digital humidistat to turn it self off. the unit is also fairly large and i wish it was smaller. I also wish the tank was bigger as it’s kind of annoying to flip the filter and refill it everyday. I probably could do it every other day. I will say that the filter stays relatively clean after using the deminirlization tablets and aftermarket filter from amazon. Also being able to throw like most parts in the dishwasher is awesome for cleaning . comparing this to a previous levoit ultrasonic and i like that it’s way more healthy. No mold in tricky spots (yet anyway) and i feel like i can do an easier job of keeping it clean for my son. I do change the wick every 30 days as well .

No. they all suck and it is frustrating. An ideal situation is to have a whole home humidifier and just have to keep ontop of one filter and cleaning but of course not everyone can do that (and those have their issue too). I'm also a busy working parent and just decided to try going without a humidifier this year and see how it goes. Try to see how they do. In the past, i've utilized the Honeywell HCM350 and run what parts i can through the dishwasher and clean the rest as best as i can as often as i can (prob every 2-3 weeks realistically). I keep eying the Levoit 6000s but i don't have a spacious place and don't have excess funds at the moment or the capacity to try something and deal with returning it, etc. all this to say, as a parent, you are not alone, it is super frustrating and i wish there was an easy to use humidifer for our little kiddos. I grew up with sinus issues and at this point in my life, i feel like i've tried so many humidifiers and am just tired of it.

Been happy with our Honeywell evaporative humidifier. I’m not sure the model exactly as it’s older but the HCM350 seems to be at least very similar if not the same

Fwiw I hated the Honeywell HCM 350 after 6 months. The plastic tray still ends up pockmarked and eroded with regular use. Went through 2 units and gave up on humidifiers altogether.

Get a tank you can fit your hand into first, because if you can actually reach the bottom you can give it a real scrub and not just pretend. Most humidifiers eventually give out because scale builds up in hidden corners and the motor gets overworked... it all sneaks up on you. If you want something a bit more reliabel, a chunky ABS tank usually copes better than the thin clear plastic that can crack with barely any stress. Evaporative wick units usually stay cleaner than ultrasonics since ultrasonics can leave that white mineral dust everywhere and it looks awful. Simple dials usually survive longer. Touch panels can be fussy and once they go there's not much you can do about it. If the fan assembly comes apart it's easier to keep the inside from turning into a little mould patch though some people forget to do this and then wonder why it smells weird and why it's not moving air properly Smart features are fine as long as the electronics sit somewhere dry enough that steam drift won't bother them. If you want straightforward models that perform decently, the Vornado EV100 or EV200 and the older Honeywell HCM-350 are common choices. Skip the silent ultrasonic toys. They run quietly right up until they stop.

Biology always wins, no matter what the box claims. UV lights inside a humidifier tank barely hit anything once the water gets cloudy or a biofilm forms. Chlorine cartridges run out fast, microbes do not. The only reliable approach is picking a design that is hard to contaminate in the first place. A sealed evaporative wick chamber with no internal splash zones helps more than any gadget. A tank and base you can toss in a dishwasher lets you cook off the slime instead of scrubbing forever. A decent wick material slows things down, but it is still not magic. A simple water path with no hidden channels keeps mold from setting up shop. The Vornado Evap40 and the Honeywell HCM 350 fit that pattern, mostly because they rely on plain evaporation instead of pretending to be sterilizers. Any self cleaning UV badge is marketing. Those LEDs barely light the water, much less sanitize it. Simple geometry and heat tolerant parts outlive every gimmick humidifier.

Get a digital hygrometer to put in the room, you can get them online or in the reptile section at a pet store. The analog ones suck. I live in a humid area but usually my room is never too humid with the room door open and the A/C running so it's never as humid indoors as outside, so you may not need a dehumidifier, but test your room humidity to find out. You'll definitely want a humidifier though if it ever gets cold or you ever use your heater. You'll ideally want an evaporative humidifier, the moisture evaporates into the air. Don't get a mist humidifier, you don't want water droplets settling on your harp. Sometimes they use the term "invisible cool mist" for evaporative humidifiers, but make sure the description says it's evaporative and not vapor/doesn't show mist/vapor in the photos. [This](https://a.co/d/5xKfUiA) is what I have, it's the cheapest decent evaporative one I could find, but it's only strong enough for a small-medium room imo. If you have a ceiling fan, that also helps to spread the humidity around better on the counterclockwise setting and to shut the room door. It'll be harder to retain humidity in a large open room without a large humidifier, but that can be good place to put the harp if you want to dehumidify.

Does your house have an HVAC system? If so, I purchased a whole home evaporative unit and it has been a blessing. I could not, for the life of me, get the humidity to even passable levels with multiple portable evaportive units (which makes sense as the whole home unit is putting upwards of 10 gallons a day into the air on the driest days of winter.) If not, we had portable Honeywell systems, which were well designed (but inherently limited on what they could do if you are in a super dry area.) If your water is hard, you will have to change the filter more often (as is the case with any evaporative unit).