Pneumatic silencers are designed for installation on exhaust circuits to reduce the noise levels of equipment while operating and also remove and collect oil mist from exhaust air, preventing contamination from entering the environment.

Pneumatic exhaust silencers are commonly designed with a porous material to increase the surface area of the exhaust port which it covers. Pneumatic mufflers are typically used with valves, manifolds, cylinders, compressors and fittings. Using a silencer exhaust mufflers can keep performed work at a safe noise level  and prevent harmful contaminants from entering the environment, thus improving user comfort.