All hazardous gas and chemical use areas have to have appropriate ventilation systems. Does it mean that these areas have to have separate exhaust systems from areas without hazardous contaminants like for example offices? Or can these areas be served by the same exhaust system as offices if this air is not recilculated and there's no way that contaminated air gets to other rooms?

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Dylan Connelly

Mechanical Engineer

Integral Group

LEEDuser Expert

342 thumbs up

Fri, 03/22/2013 - 17:54

Adam, For LEED your approach (use a common exhaust system for hazardous gases and general office exhaust) would be acceptable. Check with local code however. It's not a problem to have copiers, janitors closets, and restrooms all on the same common exhaust system, but local code may have issues with combining those with lab exhaust, etc.

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