Air flow: Listen & Download Air flow .mp3 Error! Change your browser, please! ⇓ Download Air pressure ⚠ Air is blown through a glass tube ⚠ Mask breathing ⚠ Balloon descent ⚠ Air flow ⚠ Air release with a loud whistling creak, ⚠ Air is bleeding through a hose ⚠ Helium balloon ⚠ Wind tunnel ventilation ⚠ Small compressor blowing air ⚠ Oxygen balloon ⚠ Steam ⚠ ★★★★★