Truck Air Brakes: Listen & Download Truck Air Brakes .mp3 Error! Change your browser, please! ⇓ Download Mask breathing ⚠ Air compressor operation ⚠ Blower, air broom ⚠ A stream of air breaks out of a metal pipe ⚠ Helium balloon ⚠ Rope torsion ⚠ Steam ⚠ Suction action of air ⚠ Balloon descent ⚠ Balloon inflating ⚠ Truck Air Brakes ⚠ Air release with a loud whistling creak, ⚠ ★★★★★