Summary: After researching several products, this unit had all the features we were looking for, clean air, removal of dust mites, pollen and several other air and humidity problems. It is whisper quiet, very easy to clean and put water into it. Easy to read instructions. It's expensive, but worth every penny.
Summary: I use this unit in my Art studio and it makes the environment pleasant and air fresh. I use oil paint and turpenoid, so the air quality is a very important element in the art studio. I am very pleased with this Air Purifier and it's humidifier function as well.
Summary: I now own 2 Sharp units. The other one is over 5 years old and still works perfectly. I bought this one because it has a humidifier, which I need in my bedroom. So far, it does the job well. You can't specify the level of humidity (the only feature that is missing), but it will automatically adjust between 45-60% depending on the temperature of the room. On the lowest fan setting, it uses about 10 watts with the ionizer and humidification turned on, and is quiet.