News & Education

Smoke Evacuation Testing

This video shows what a successful test should look like. Testing required 80,000 cubic feet of smoke generation. Test was performed using a heated source and smoke generation sticks as required by the ...

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Volume Dampers

The purpose of installing manual volume dampers in each branch and sub branch is necessary for multiple reasons.

Energy conservation by reducing unnecessary static to non-critical paths:

In a ducted air system, there is typically a ...

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Balancing Air Flow with Fire & Smoke Dampers

Air handling systems must be balanced to obtain the correct pressures to establish design flow in all floors and zones. Fire and/or smoke dampers are required in barrier walls. This requires two dampers in modern ...

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New Fume Hood Performance Testing Procedural Standard Now Available

NEBB’s fume hood testing committee has released the latest version of Procedural Standard for Fume Hood Performance Testing

The purpose of the new, second edition of this Procedural Standard is to establish a uniform and ...

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Why using spiral duct improves duct design?

A good article in Snips Magazine that featured an article on spiral duct use and design which also has some references to balancing.  The article was written by John Reintz.

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