Air Cooler

Air coolers use water evaporation to cool the air. They operate by forcing hot, dry air through a cooling pad or water-soaked filter. Cooler air is blown out as a result of the water evaporating and absorbing the heat when the air travels through the pad. Evaporative coolers, swamp coolers, and desert coolers are further names for air coolers. They are employed in hot, dry climates where they can replace air conditioning more effectively in terms of energy use. Since they don't use compressors or refrigerants like air conditioners do, they may be more environmentally friendly.