The CO48PM Honeywell Indoor/Outdoor Evaporative Air Cooler is the ideal choice to keep indoor rooms and outdoor environments comfortably cool and breezy. This weather resistant evaporative air cooler is made to resist outdoor conditions. Honeywell evaporative coolers do not require power hungry components like compressors. The CO48PM Honeywell Evaporative Cooler consumes only 150 watts of power. This low power consumption translates into significant savings on energy bills compared to using air conditioners. Just unpack, add water/ice, place near open door or window, plug it in, and use. This unit is ideal for rooms up to 610 sq. ft. in any home or office. For outdoor environments, its powerful motor with 14 inch, wide fan blades help to deliver strong air flow. A continuous water supply connection, 48 liter (10.6 gallons) water tank, and built-in overflow protection system allow long periods of unattended operation, making it perfect for more demanding and commercial applications. This evaporative cooler features honeycomb cooling media on 3 sides for faster, more optimal cooling performance. Durable, smooth gliding caster wheels allowing easy mobility.