Inflating a mattress: Listen & Download Inflating a mattress .mp3 Error! Change your browser, please! ⇓ Download Fighting the fire with blacksmith furs ⚠ Inflating a mattress ⚠ Balloon inflating ⚠ Steam ⚠ Wind tunnel ventilation ⚠ Truck Air Brakes ⚠ Air is blown through a glass tube ⚠ Air is let through the regulator ⚠ Oxygen balloon ⚠ Mask breathing ⚠ A stream of air breaks out of a metal pipe ⚠ Air pressure ⚠ ★★★★★