You may not be familiar with the term evaporative cooling, but the fact is that it's all around you. In its simplest form, evaporative cooling refers to the cooling of a system by water. Because no refrigerants or compressors are required, the system does not generate additional heat. Evaporative cooling has been used since ancient Egypt to provide natural cooling. Over typical air conditioning technologies, evaporative cooling offers a more energy-efficient, ecologically fri