Honeywell Evaporative Air Coolers are an environmentally-friendly and cost-friendly cooling option for your home. Much like a breeze flowing across a lake or the refreshing cool air you feel near a waterfall, air coolers produce a comfortable, cool breeze with the natural process of water evaporation. When warm air is drawn into the Honeywell Evaporative Cooler, it is filtered through a wet honeycomb cooling medium, which absorbs heat and naturally cools and humidifies the air. A powerful fan pushes the cool air out of the front of the unit into the surrounding area. This no-compressor system cools naturally, efficiently, and inexpensively.