Abstract

Compressed-air tools are widely used and generate noise levels exceeding 100 dB(A). Several types of muffler are available, but little information is available on the most appropriate selection criteria for a given situation.

This project identified industry requirements and inventoried the leading models of muffler and compressed air generators available in Canada. A laboratory test bed was developed, and a method for the evaluation of mufflers validated in the field.

An evaluation method for mufflers is now available, and the project report contains the results of muffler testing. A guide has been produced which summarizes the project report in a tabular format, and which should greatly simplify the choice of the most appropriate muffler or compressed air generator. The guide will be published in 1993.