It is whisper-quiet and has many great features such as mood lighting and background "white " noise to help induce sleep when used in a bedroom.  Nice mist flow. Unlike other products I've owned previously,  you can adjust the position/direction of the mist on this humidifier.  Most others have a stationary top piece.   I also liked the fact that it doesn't leave a wet residue or drip.  It is quite efficient and the mist is provided throughout an entire night's sleep.   My room is no longer dry and arid and I sleep much better when I use it overnight.