Air compressor machine, rumble, air release
A person blowing a spit ball through a straw softly. Air release.
Sounds of a bus stop with buses pulling up and driving away engines idling and air released
Air compressor machine, air release, short
Quick high pitch air release
Unbuckle large camera case latch, with air release
A person blowing and spitting through a straw. Air release.
A balloon releasing a short burst or air with rubber flapping fart sounds.
Plunger suction, air release
Bus door opens squeakily, closes with air release