What is a swamp cooler? Also known as an evaporative cooler, this device—which is about the same size as a room air conditioner—lowers the temperature in a home simply by adding moisture to the air.

If you live in a dry climate — especially in the West and Southwest — air conditioning isn't your only option for keeping a room cool. A portable evaporative cooler (aka "swamp" cooler) does basically ...

Which swamp cooler is best? When summer breezes get hot, and there isn’t an air conditioner available, a swamp cooler can help. Swamp coolers don’t provide the frosty chill of air conditioning, but ...