Air compressor that is used for Airbrush painting is generally very small and are used for precision painting work. For heavier spray painting work slightly bigger Air compressors with 9 Litre tanks & 1 Hp motors are used. For workshop & industries that use pneumatic tools like impact wrench & staplers, etc we recommend using bigger air compressors which start with 50-litre tank capacity & can go up to 225-litre tank with 5 hp motor.