Air compressor, air bleed, cylinder pressure:
-
Small compressor blowing air
-
Steam
-
Inflating a mattress
-
Air is let through the regulator
-
A stream of air breaks out of a metal pipe
-
Air flow
-
Helium balloon
-
Construction, compressor discharges air
-
Air release with a loud whistling creak,
-
Air pressure
-
Rope torsion
-
Cylinder pressure, air bleed, Air compressor
★★★★★