A plunger gets rid of the dirt particles.

Dirt particles with an extremely reduced contact area are picked up by water droplets and are thus easily cleaned off the surface.

These are vessels designed to remove any free liquids or dirt particles from the gas before it enters the compressors.

For this reason fewer dirt particles cling to the surface and also can be washed off far easier.

Hybrid cyclonic filtered systems have been made, which use a rudimentary cyclonic motion to separate out larger dirt particles, but rely on conventional filter bags to trap remaining finer particles.