Number one in Germany!  Humidifiers help keep living air moist during cold winter months. Using ultrasonic vibrations, water is converted into a micro-fine mist that gently (but efficiently) emits moisture into a room.  The ultrasonic warm or cool mist that the Venta-Sonic VS 100 produces is both comforting and healthy. Practical control panel Designed to humidify a room up to 600 square feet.  Features include: