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Better Chamber Type Spark Arresting:
Expected Attenuation is 21 to 24 dBA
Use a model MSA2 in residential areas where
background noise is present but not objectionable
and spark arresting feature is desired. In these
areas, installation of an MSA2 on an engine exhaust
is intended to bring the noise level down to match
the ambient noise levels.
Example: In a quieter residential areas off the main
traffic areas and away from constant noise sources. |