The Vornado UH100 Ultrasonic Humidifier gives you comfort you can see and feel. Powerful whole room circulation evenly distributes humidity throughout the whole room (up to 600 sq. ft.) without pooling water on the floor. The built-in humidistat allows you to set your comfort level while the UH100 automatically maintains it. With the SimpleTank System we made carrying, filling and cleaning the tank, well, simple - 1-gallon capacity and 2-gallon output every 24 hours. Easy-to-use push button controls, 3 fan settings (High, Low and Auto), simplistic design make the UH100 anything but ordinary. Features: Vortex Assisted Humidity Output Whole Room Humidification - Up To 600 sq ft Intelligently Regulates Humidity Output Mineral Cartridge Included Ultrasonic Technology Creates A Soothing Mist High Capacity 1 Gallon Tank Push Button Controls Specifications: Capacity: 1.00 High Speed Gallons Per Day: 2 Item Weight: 5.70 lbs. Item Height: 14.50 in. Item Depth: 7.28 in. Item Width: 12.58 in. Watts: 26W Hertz: 60 HZ Volts: 120 PowerCord Length: 6 ft. PowerCord Plug Type: 2-Pin Polarized