Unsupported browser

For a better experience please update your browser to its latest version.

Your browser appears to have cookies disabled. For the best experience of this website, please enable cookies in your browser

We'll assume we have your consent to use cookies, for example so you won't need to log in each time you visit our site.
Learn more


  • Comment

Pictured here are IAC's D-Ducts, ready to leave for Shanghai in China where they will reduce axial fan noise emissions in a new commercial building. D-Ducts contain the usual sound-absorbing materials but, unlike standard silencers, they have a central diffuser cone which dramatically reduces pressure drop. This saves energy, as the fan doesn't have to work so hard to deliver the required air volume. Standard sizes range from 565mm to 1830mm, but IAC can supply large and non-standard units.

  • Comment

Have your say

You must sign in to make a comment

Please remember that the submission of any material is governed by our Terms and Conditions and by submitting material you confirm your agreement to these Terms and Conditions.

Links may be included in your comments but HTML is not permitted.