Evaporative air cooling is the natural way of cooling, it is the most efficient and environment friendly cooling technology which works on the sical nomena of heat absorption by water evaporation.Â
As schematically shown, when the cooler is working, water will be pumped from the tank on to cooling pad, then go back to the tank and cooling pad becomes wet. A fan/blower draws hot air from outside of cooler through the wetted cooling pad , heat is absorbed, air is filtered and cooled before delivering to the user space.