Evaporative air coolers or swamp coolers as they are generally called are an excellent alternative to cooling and humidifying the air in the room. They work extremely well in areas where climate is warm and dry. An evaporative air cooler reduces the temperature of the room by the simple process of evaporation of water.

An evaporative cooler is an excellent and a very inexpensive method of cooling the air during hot and dry weather. They have various advantages over usual air conditioners in this climate. Firstly, their installation is a lot cheaper when compared to a standard air conditioning unit. Installing an evaporative cooler for a room, will cost you anywhere between a half or one-eighth of the cost of installing an air conditioning unit.

An evaporative cooler consists only of a fan and a water pump, as compared to the compressor, pumps and blowers in a standard air conditioning unit. Your electricity bill will also reduce if you use one of these devices instead of standard air conditioning; this usually results in savings of up to 75 percent. An evaporative air cooler also has fairly simple moving parts and so would be a lot easier and inexpensive to maintain.

Unlike an air conditioning unit, a swamp cooler is also humidifies the air making you feel a lot more comfortable in dry climates. Moreover, an evaporative air cooler helps to protect the environment by not emitting any ozone depleting residues. This makes them an excellent alternative to air conditioning.