Are evaporative air coolers cheaper than normal air conditioners?
To answer this question, we need to know how evaporative coolers work:
Unlike air conditioners, evaporative coolers do not need a compressor or air condenser, which makes the cost of manufacturing them very cheap. They consist of a motor, pump, cooling pads and fan as main parts. It also depends on its cooling on the external air for cooling when the external air meets the cooling pads that are hydrated with water, which leads to the exit of the air from the cooler cool and humidified with water and thus the temperature of the place decreases as a principle of the evaporative cooling process