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Good Chamber Type Silencer:
Expected Attenuation is 17 to 20 dBA
Use a model M21 in residential and light industrial
areas where background noise is relatively high and
constant and the need for higher degrees of
silencing is minimal.
Example: In residential neighborhoods having high
traffic or light industry with relatively constant
background noise. Residents in these areas are
typically accustomed to the noise or make some
efforts to shield themselves from the ever present
background noise . Use of an M21 can keep engine
exhaust noise within existing noise levels. |