This Evaporative Air Cooler with Ionizer is versatile and an economical way to cool your immediate surrounding area. Designed with micro-computer control system, this unit can lower surrounding temperature through the principal of water evaporation. The Cooler easily rolls from room to room with lockable casters. This Air Cooler shoots a stream of air with oscillating louvers, to evenly distribute refreshing cool air. The remote control allows you to easily change settings. 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. Note: This unit is best used in dry climates or open spaces. Leave window/door open when temperature or humidity rises in the room. Add as much ice as possible and set unit next to you for best effect. Features and Functions - Computer-controlled system with LED panel - Double-layered, filtration mesh water curtain - Remote control - Activated carbon filter - Washable filter - Three air speeds: H / M / L - Timer: from 0.5 ~ 7.5 hours setting - Locking casters - ARB certified (complies with the federal ozone emissions limit) - ETL INSTRUCTIONS MANUAL Specifications | Input voltage | 120V / 60Hz | Power consumption | 60 W | Air flow | 550 CFM | Water consumption | 0.5 ~ 0.6L/Hr | Fan speeds | 7.4 m/s | Ion density | 2,800,800 ~ 3,000,000/CM3 | Dimension (W x D x H) in. | 14.5 x 11.5 x 31.75 in. | Net weight | 20 lbs | |