Inflating a mattress: Listen & Download Inflating a mattress .mp3 Error! Change your browser, please! ⇓ Download Steam ⚠ Construction, compressor discharges air ⚠ The work of oxygen equipment, the release of ⚠ Balloon inflating ⚠ Suction action of air ⚠ Balloon descent ⚠ Wind tunnel ventilation ⚠ Air is bleeding through a hose ⚠ Air compressor operation ⚠ Air pressure ⚠ Oxygen balloon ⚠ A stream of air breaks out of a metal pipe ⚠ ★★★★★