To effectively reduce and control the noise from various blowers, such as Roots blowers, air compressors, axial flow exhaust fans, and centrifugal ventilators, our company addresses the noise sources of these blowers, which often have multiple frequency spectrum values. Depending on different noise intensities, sound generation mechanisms, and propagation paths, the requirements for noise reduction vary. Therefore, our factory has adopted targeted design, creating a series of silencers that, after being used by numerous manufacturers, have demonstrated excellent noise reduction performance.