Evaporative Cooling for Energy Efficient Cooling of Buildings and ***** and now Data Centres and Server Rooms The Aolan range of evaporative coolers, offer a completely natural way of producing refreshing cool air. Our Evaporative cooling units have been specifically designed for the cooling of industrial and commercial buildings and can give an amazing 35KW of air cooling for every 1.1KW of electricity consumed. Aolans aim is to assist our customers improve productivity and accuracy through providing a cooler working environment, built upon a foundation of technology and innovation. We endeavor to provide a cooling solution at the least possible operating energy cost whilst providing employees an optimum thermal comfort level free of heat stress even on the hottest day and in the face of the heat generated from the production process or thermal heat gain.