Blower & Exhaust Mufflers

NAP Silentflo are the only Australasian company with independently laboratory certified acoustic solutions for almost every acoustic application, whether it be commercial, architectural, or industrial.

Performance is backed with extensive independent laboratory testing of the insertion loss, regenerated noise level, and aerodynamic performance across the whole range, together with an on-going program of continual product development at their test facilities in Melbourne and Hong Kong.

Cooke Industries have represented NAP in New Zealand for over 40years, and manufacture their entire acoustic products range under license here in New Zealand.  We provide a complete acoustic solution, including:

  • Specialist advice for solving your problem in the most cost efficient manner.

  • A tailored acoustic solution, including bespoke design if required.

  • Local manufacture in our purpose-built facilities with backup from NAP’s factories in Australia, the Far East, and Europe.

NAP has a full range of absorptive, multi chamber reactive, and combination units for blowers, vacuum pumps, genset exhausts, compressors and marine engine applications.


Absorptive silencers for where medium acoustic performance of 10-15dB(A) is required.
Combination absorptive/reactive silencers to provide the very highest noise control in all critical situations
Multi-chamber reactive silencers for application where good broad band performance is required with performance up to 30dB(A).

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