This innovative, energy efficient Air Cooler works by endothermic reaction (a reaction that consumes heat). The evaporative Air Cooler sucks air through a wick saturated with cooled 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 that is considerably cooler than the current room temperature! This is not an air conditioner and therefore uses much less energy.