The work of oxygen equipment, the release of oxygen: Listen & Download The release of, The work of oxygen equipment .mp3 Error! Change your browser, please! ⇓ Download Air release with a loud whistling creak, ⚠ Steam ⚠ Air is bleeding through a hose ⚠ Suction action of air ⚠ Air flow ⚠ Air is let through the regulator ⚠ Truck Air Brakes ⚠ A stream of air breaks out of a metal pipe ⚠ Air compressor operation ⚠ Oxygen balloon ⚠ Balloon inflating ⚠ Air pressure ⚠ ★★★★★