How to Select an Air Compressor sponsored in part by the U. S. Department of Energy, the video provides excellent advice from industry experts and users about the process of selecting an air compressor, going beyond the compressor itself and encouraging buyers to look at their complete air systems. While price is an important consideration, purchasing a compressor on price alone could cost plenty. The number one expense in owning a compressor is the power cost involved in running one. This video discusses the total cost of a compressor and what must be considered before making the purchase decision. The video demonstrates that a thorough study of an air system may show that the buyer does not need another compressor but, rather, a more efficient system.