The first, somewhat primitive air cooler was developed in Iran thousands of years ago. It was a crude system that possessed wind shafts that caught the wind and passed it through water on roofs as it blew it into homes or work areas. Today evaporative cooling has become a sophisticated way to save money and energy as well as effectively cooling the environment in homes, industrial plants, commercial kitchens, dry cleaners and laundries, loading docks, factories, warehouses, and more. This cooling works bests in arid climates, and it is now the time to service your evaporative cooler.