Inflating a mattress: Listen & Download Inflating a mattress .mp3 Error! Change your browser, please! ⇓ Download Mask breathing ⚠ Construction, compressor discharges air ⚠ Balloon descent ⚠ Air broom, Blower ⚠ Inflating a mattress ⚠ Air compressor operation ⚠ Suction action of air ⚠ Helium balloon ⚠ Rope torsion ⚠ Steam ⚠ Air is bleeding through a hose ⚠ Air is let through the regulator ⚠ ★★★★★