NFPA 91

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Standard for Exhaust Systems for Air Conveying of Vapors, Gases, Mists, and Particulate Solids

This standard provides technical requirements for exhaust systems that will protect lives and property from fires and explosions and minimize damage in the event that such fires and explosions occur.

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Happy Holidays! NFPA will be closed December 25 - January 1. We wish you all a safe & enjoyable holiday week and look forward to serving you in the new year.

NFPA 91: News & Research

News about NFPA codes and standards

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Happy Holidays! NFPA will be closed December 25 - January 1. Place your orders by Wednesday, December 13 to ensure domestic delivery by year end. We wish you all a safe & enjoyable holiday week and look forward to serving you in the new year.

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