Muffler ((Muffler)) is to prevent sound propagation and allow airflow through a device, is one of the important measures to eliminate the air dynamic noise.Muffler is installed in the air power equipment (e.g., blower, air compressor, generator, water pump, boiler vent exhaust noise, such as the larger equipment) of the gas flow path or the device and reduce the noise in the inlet and exhaust system.