The Atomuffler® Soft Flow Muffler satisfies the need to muffle explosive air exhaust noise discharged from valve exhaust ports to a comfortable quiet zone with optimized CV Flow Factor, thus substantially improving equipment performance. Constructed with a unique expansion chamber, completely free of obstruction, exhaust air softly flows to the atmosphere free of noise, oil fog and contaminants, providing a clean comfortable productive work environment. They should be mounted in a protective position, free from excess vibration. The Soft Flow muffler features special internally added acoustic treatment, achieves a higher degree of noise suppression.