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 An air cooler is a device that cools air through the evaporation of water Evaporative cooling differs from other air conditioning systems, which use vapor compression refrigeration cycles Evaporative cooling uses the fact that water will absorb a relatively large amount of heat from the air to evaporateHowever, there's not much time left for the summer seasonA variation of this method is to use a 5 gallon bucket instead of a cooler, where you would cut holes on the side side if the bucket for the vents Instead of using dryer vents, you could Homemade Air Conditioners Give Some Relief From Summer Heat How to make a room cooler without ac