Evaporative coolers (also recognized as evaporative air conditioners, swamp coolers, swamp boxes, wilderness coolers, and moist air coolers) are gadgets that cool air thru the evaporation of water. Evaporative cooling differs from different air-conditioning structures that use vapor-compression or absorption refrigeration cycles. Through the section exchange (evaporation) of liquid water to water vapor, the temperature of the drying air can be drastically reduced.

The first important consideration when choosing an evaporative cooler for a business is the size and capacity of the unit. The cooling capacity of an evaporative cooler is measured in cubic feet per minute (CFM) and it is important to choose a unit that is capable of providing adequate cooling for the size of the space being cooled.

Another important consideration is the maintenance and operating costs of the evaporative cooler. It is important to choose a unit that is easy to maintain and that has low operating costs. This includes factors such as the cost of electricity, water usage, and the need for regular maintenance and cleaning to ensure optimal performance and longevity of the unit.