An exhaust silencer is designed to give maximum reduction of low- and high- frequency noise of air, steam, or gas exhausting to atmosphere. The gas enters initially into the first stage silencing chamber where flow is disbursed, and later into the second stage silencing chamber where the leftover noise is absorbed. It is possible to reduce the noise to 34.9 dB by using a larger size silencer. The purpose of an exhaust silencer is to suppress exhaust noise to a very low level. It does this by breaking up the intermittent stream of high-velocity exhaust gases into numerous small streams, which has the effect of reducing both their velocity and their temperature so that they leave the tail pipe of the exhaust system in a more nearly constant flow at low velocity.