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 The release of, The work of oxygen equipment ⚠ Oxygen balloon ⚠ Air release with a loud whistling creak, ⚠ Soccer ball ⚠ Air pressure ⚠ Balloon inflating ⚠ Air is bleeding through a hose ⚠ Truck Air Brakes ⚠ Helium balloon ⚠ Suction action of air ⚠ A stream of air breaks out of a metal pipe ⚠ Mask breathing ⚠ ★★★★★