Where are the evaporative coolers not recommended or becomes ineffective?
Evaporative Air Coolers should not be used in enclosed spaces. Doors and windows should be opened to allow free air flow. An Air Cooler works best when placed near an open window, drawing outside air and circulating it in the room before exiting via a window or door. The maximum cooling effect is felt when a person is near the flow of air coming out of the Air Cooler.
