Truck Air Brakes: Listen & Download Truck Air Brakes .mp3 Error! Change your browser, please! ⇓ Download A stream of air breaks out of a metal pipe ⚠ Soccer ball ⚠ Helium balloon ⚠ Air is bleeding through a hose ⚠ Balloon descent ⚠ Wind tunnel ventilation ⚠ Air flow ⚠ Small compressor blowing air ⚠ Blower, air broom ⚠ Cut through the air with a gas burner ⚠ Steam ⚠ Inflating a mattress ⚠ ★★★★★