In modern industrial production and equipment use, the porous plastic muffler can effectively reduce the noise of pneumatic equipment, and can provide the best balance between noise reduction and acceptable back pressure in pneumatic system. Porous plastic mufflers offer a number of advantages over metal mufflers, including significantly lower weight, significantly improved corrosion resistance, higher particle and aerosol filtering ability, greater durability, faster assembly and cost advantages. In general, porous mufflers are available in a wide range of sizes to fit most standard valves and have robust integrated threads that ensure easy assembly to pneumatic equipment.