| − | Swamp coolers, also known as evaporative coolers, consist of air-conditioning equipment that removes [[heat]] by evaporating water. Evaporative cooling techniques are most commonly found in warm, dry climates such as in the Southwest, although they are found throughout the country. They usually work by spraying cool [[water]] into the [[air]] ducts, cooling the air as the spray evaporates. | + | '''Swamp coolers''', also known as '''evaporative coolers''', consist of air-conditioning equipment that removes [[heat]] by evaporating water. Evaporative cooling techniques are most commonly found in warm, dry climates such as in the Southwest, although they are found throughout the country. They usually work by spraying cool [[water]] into the [[air]] ducts, cooling the air as the spray evaporates. |