0ur opinion: :Compact and unobtrusive, the Honeywell HWM255 quietly humidifies a room with an area of up to 350 square feet, providing comfort in very dry environments. Geared to provide up to 3 gallons of daily output, the tank itself holds about 1-1/2 gallons of water. This helps keep the unit size relatively compact so you can conveniently place the HWM255 virtually anywhere in your room. A built-in humidostat advises how much moisture has been emitted. There's also a built-in timer so the machine only works when you need it, great for maximizing comfort and saving energy. Auto Shut 0ff turns the device off when out of water. Honeywell's EZ-Care system makes filling and emptying really simple. The water tank is dishwasher safe for quick and thorough cleaning.
Features and Benefits: Automatic shut-off at desired humidity or when unit is empty EZ Care System - Easy to fill, carry and clean Dishwasher safe medicine dispenser Replacement Filter - No replacement filter required Dimensions - 16.00 x 13.25 x 10.50 inches Weight - 8.0 pounds Warranty - 5-years limited warranty
Testimonials
Average Buyer Rating:

Buyer's feedback: 
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* Excellent Purchase! ...
I have had no complaints about this humidifier. It is easy to set up, use, and clean. My sinus problems have decreased by at least 60% since I started using this product. I'm pregnant and cannot use drugs like Sudafed to decrease congestion so this humidifier has been a lifesaver.
Buyer's feedback: 
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still working perfectly after 5 years!
I bought my machine 5 years ago, and used it daily throughout the winter heating seasons. I loved the fact that I could set humidity, and the water in the tank is more than enough to last the whole night (I set humidity to 50). It has been a miracle worker for my dry skins. I no longer have dry patches.
It has been easy to clean (I clean it once every 3 weeks. I am very busy, so I don't clean as often as I should). And it works as well today as it did 5 years ago. I loved it so much that I immediately recommended it to my friends after 1 month's usage. They bought it 5 years ago, and their machines are working perfectly today.
I never bothered to review this machine until I saw quite a few people said that their mahcine broke quickly. I want to point out that those people whose machine worked well for many years probably didn't bother to write a review for an old product because it was bought too long ago and they considered it quite normal for the machine to work (nothing to write about). The people whose machine broke quickly will almost always submit a review to express their dissatisfaction. Online reviews are almost never representative of the whole spectrum of opinions. The people who are very dissatisfied are almost always over-represented. So keep that in mind when you read reviews. I am happy with my machine, but I don't know how reliable this brand is overall or if there is any change in management or quality control in recent years.
Buyer's feedback: 
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* the humidifier humidifies ...
I am pleased with my HWM255. My unit does it's job for me.
1) I've used it for a few years now and it hasn't broken down.
2) The tank is large enough to run overnight without need to refill.
3) The low setting is just right in keeping my room humidity up.
4) Low maintenance. I rarely clean it and no slime or whatever has come. I also rarely clean the element too. Still works fine. I am surprized others call it high maintenance.
5) Steam! no fan needed so it is very quiet - no problems sleeping with it on. Also, steam is more sanitary than other types.
6) Shuts-off automatically when water runs out.
However, i only give it 4 stars as a recommendation to others because:
7) the humidity reader/display never worked correctly. I personally don't care that it doesn't work. However, if someone decides to buy because of that function, they will be disappointed. I may be fortunate that the low setting works well for me so i don't need it to manage the humidity for me.
Buyer's feedback: 
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Great when it works, did not last past 2 years!
When it worked, and I had this for just under 2 years, it was great, the steam was nice, I used it to steam up my bathroom and my face, but when it stopped working (I think the fuse popped), I was so disheartened. I really expected a nice Honeywell product to last longer. Will not buy this again. Two years not long enough!
Buyer's feedback: 
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* Inaccurate humidistat ...
On the plus side, the unit is easy to clean (I use filtered water, which minimizes mineral buildup). The humidistat, however, does not work properly, so that I find myself waking up drenched in sweat -- I have it set for 60%, but it will get up to 75% or more before it cuts off. Just a while ago, it was reading 45%, while it was actually 70% in the room, so the problem appears to be getting worse. I really don't appreciate having the choice of being kept awake by my dried-out sinuses, or being tortured with excess humidity, so I am shopping for another machine.