The Vornado UH100 Ultrasonic Humidifier gives you comfort you can see and feel. Features: 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 from 40% to 60% humidity while the UH100 automatically maintains it SimpleTank™ System makes carrying, filling and cleaning the tank simple with 1-gallon capacity and 2-gallon output every 24 hours Easy-to-use push button controls LED indicators and three fan settings (High, Low and Auto) Auto shut off when tank is emptyElectronic Push Button controls with LED indicators Includes mineral cartridge and cleaning brush Dimensions: 12-3/5" W x 16-1/10" H x 7-1/4" D