Piston compressors that are portable, compact, oilless and require no maintenance. Quiet performance - sound level barely above a whisper - with a hose for an airbrush. A simple on/off switch activates these compressors. Features also include an automatic shut-off switch which permits these compressors to turn themselves off when not in use and back-on when resuming airbrushing. This eliminates heat-related moisture build-up, reduces running time and minimizes motor wear.