The Vornado Whole Room Evaporative Humidifier combines the proven reliability of evaporative humidification with Vornado's signature Whole Room Circulation, resulting in a uniquely effective means to create a comfortable living space. Vornado's deep pitch blade circulator pulls large volumes of harsh, dry air through the unit and then pushes the moistened air further out into the room, providing complete and even humidification. It also recovers and circulates heat off of the ceiling for even room temperature.