Honeywell Quietcare™ Cool Moisture Humidifier

I bought this humidifier a year and a half ago.  It is VERY loud considering it is called Quiet Care, the filters fall apart too quickly and it is difficult to fill because one has to hold the refill container up so it won't fall over in the sink.  This humidifier has been a huge disappointment. 

The HCM-630 is quiet, fast and effective. We bought the smaller unit for our upstairs and it is much quieter than our larger tank unit downstairs, but it effectively humidifies the entire upstairs in short order.

I have owned the HCM-630 for three years and it has performed admirably in that time: quiet, easy to clean, humidifies as it should.   Recently, I needed another one for my office but this new one turned out to be twice as loud as my first unit, even on the the lowest fan speed.  For me, the noise from the fan is too loud to sleep though, so I returned it the next day.  The box may claim it is "40% quieter" but don't be fooled by this.  Will be looking for another cool moisture humidifier.