The RWC50 evaporative window cooler with remote control is built for high performance, easy installation and low maintenance. Evaporative coolers are intended for use in dry, arid climates. They can lower indoor temperatures by as much as 15°F to 20°F. Evaporative coolers have low installation/maintenance costs; use 75 percent less electricity; no ozone damaging refrigerants. The water saturated pads act as a type of filter, removing dust and allergens from the air. Color: Cool Sand.