Sound attenuator | Article about sound attenuator by The Free Dictionary
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In ductwork, a device (usually prefabricated) especially designed to provide much greater sound attenuation than would be provided by an equal length of ductwork; the pressure drop through the device is greater than for an equal length of ductwork.
References in periodicals archive
As an example, consider a blow-through system using a pair of axial fans whose outlets are connected to a plenum containing a collection of coils, filters and sound attenuators
It is remarkable when you consider that we avoided the use of sound attenuators
at the fans or in the duct.
Tempmaster was the first to develop and market very effective, low air pressure drop sound attenuators