Air compressor, air bleed, cylinder pressure: Listen & Download Air compressor, cylinder pressure, air bleed .mp3 Error! Change your browser, please! ⇓ Download A stream of air breaks out of a metal pipe ⚠ Air is let through the regulator ⚠ Balloon inflating ⚠ Balloon descent ⚠ The release of, The work of oxygen equipment ⚠ Air is blown through a glass tube ⚠ Truck Air Brakes ⚠ Oxygen balloon ⚠ Air release with a loud whistling creak, ⚠ Air pressure ⚠ Mask breathing ⚠ Air flow ⚠ ★★★★★