Swamp Cooler is a device that cools air through the evaporation of water.

xinxinyu 2-In-1 Evaporative Air Cooler, 9.4” Quiet Cooling Tower Fan Humidifier Portable Swamp Cooler with Bladeless Design 2 Ways Add Water 50° Oscillation...
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Air conditioner Portable Swamp Cooler Have Low Power Consumption Air Conditioning 3 In 1 Evaporative Coolers Ideal for Home/Bedroom/Dorm/Office
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Portable Evaporative Air Cooler, 30.7" Portable Bladeless Swamp Cooler with 3.5L Upper and Lower Water Tanks, 3 Wind Speed, 6 Ice Pack, No Noise Tower Fan...
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