Like new. SF-607H: Cooling Fan with Ultrasonic Humidifier This Evaporative Air Cooler provides functions of: Fan / Fan + Evaporative Cooling / Fan + Evaporative Cooling + Ultrasonic Humidifier. The new innovative combination of Ultrasonic Humidifier and Evaporative Cooler provides added moisture in addition to evaporative cooling. Casters allow the cooler to easily roll from room to room for use anywhere in your house or office. Automatic oscillating louvers evenly distribute refreshing cool air. Features remote and 3-D Cooling Pad for enhanced cooling performance. The Air Cooler works by endothermic reaction (a reaction that consumes heat), so this evaporative Air Cooler sucks air through a wick saturated with water. As the air flows through the wick, some of the water evaporates into the air, consuming the heat that was in the air. An air stream is then blown out the front of the unit and is considerably cooler than the current room temperature! This is not an air conditioner and therefore uses much less energy. 3-Dimensional Honeycomb Cooling Pad: An unique Cooling Pad for enhanced cooling performance. The Cooling Pad is made of cellulose paper, impregnated with unique ingredients for high performance and structural strength. Treated with special stiffening and wetting agents for maximum water absorption and retention; and with Anti-Rot chemical for prevention of algae and bacteria growth. Due to the 3-dimensional, weaving structure of the Cooling Pad, there is longer contact between air and water. Unlike other units on the market, where air only passes through a flat, 2-Dimensional cloth. Note: This unit is NOT an air conditioner and does not have a compressor inside – air coolers will not lower a room’s ambient temperature. Air coolers are designed for spot cooling. This unit is best used in dry climates or open spaces. Leave window/door open to limit the rise of humidity and for better air ventilation in the room. Add as much ice as possible and set unit next to you for best effect.