Do you want to buy an air compressor but not sure what to look for? There are certain things that you need to closely pay attention to. First and foremost, you need to establish how the air compressor functions. Video Source Why? Because air compressors come in different shapes and sizes. For instance, there are Rotary Screw Compressors, Reciprocating Air Compressors, Axial Compressors, and Centrifugal Compressors, and so on. How does the air compressor work? Almost all air compressors have an electric motor that is attached to a pump. So, the pump forces the air into the tank of the…