Steam Radiator, Slow Air Release, Thin Sharp Hiss, Pop

Commercial CO2 Fire Extinguisher, Long Blasts, Discharge, Medium Pressure Release, Whoosh, Airy Bursts, Hollow, Hiss, CU, Many Versions

Air Hose Suction, Interior Helmet Hiss, Short Blasts, Release, Leak, Pressure, Many Versions

Compressed Air Composite, Constant, Hiss, Squeal, Rumble, Groan

Gas Mask, Breathing, Test, Air Release, Pneumatic

Pneumatic Air Blast, Piston With Full Valve, Vent Muffled, Very Short Bursts or Releases, Valve Click, Pressure, Many Versions

Bottle Wind, Blow Air Across Mouth of Container, Large, Empty, Resonant, Swirling

Flanged Air Piston, Phasey Air Hiss, Wet, Metallic

Spray, Small Spurts of Air or Water, Propellant, Fast

Air Piston, Small Pneumatic Air Release