Compressed air can be used in:
- Pneumatics, the use of pressurized gases to do work. This includes compressed air vehicle propulsion and compressed air energy storage.
- scuba diving, to inflate buoyancy devices. See also: Breathing gas
- Compressed air can also be used for cooling using a vortex tube.
- In gas dusters. It is then often called "Canned air".
- In medical industries, compressed air is used to supply higher levels of Oxygen and other gasses to patients in need.