An evaporative air cooler, also known as a swamp cooler, is an
energy-efficient cooling device that uses the natural process of evaporation to
lower air temperature. This appliance operates by drawing warm air through
water-saturated pads, where the air absorbs moisture and cools down before
circulating into the living space. Ideal for dry, hot climates, evaporative
coolers are both environmentally friendly and cost-effective, consuming
significantly less electricity compared to traditional air conditioning
systems. Evaporative coolers are relatively simple in design, consisting of a
fan, water reservoir, and cooling pads. As the fan pulls in warm air, it passes
through the pads that are continually moistened with water. The heat in the air
causes the water to evaporate, resulting in a drop in temperature. The cooled
air is then blown into the room, creating a comfortable environment. 

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