Have the humidifier for my baby since we bought thanks to underfloor heating have only 33% humidity, and it has now unfortunately therefore getting a cold. also hang laundry helps because nothing helped because it is already dry after a few hours and the moisture falls then so quickly. The humidifier keeps in idle mode constant 42% and is very quiet way when not sleeping. I'm very satisfied and notice the difference. Handling and cleaning very easy. Replacement filter most directly at Philips Order there are around 6 cheaper than here!