Rotary vane air compressors consist of a cylindrical housing container, which houses a set of adjustable rotary vanes and exchanges air via an inlet and outlet. The vanes are set on an off-center drive shaft, which cheats towards the outlet. As drive shaft spins, the adjustable vanes closest to the outlet shorten in length, compressing the air within the spinning chamber. This air then escapes via the outlet and can power further processes down the line. Rotary Vane Air Compressors are ideal for small and quiet applications, such as in the automotive and agricultural industries. They are less ideal for applications that require oil free or otherwise uncontaminated air, or for use in potentially contaminated environments such as wood shops.