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Standard for the Installation of Air-Conditioning and Ventilating Systems

NFPA 90A covers construction, installation, operation, and maintenance of air conditioning and ventilating systems, including filters, ducts, and related equipment, to protect life and property from fire, smoke, and gases resulting from fire or conditions having manifestations similar to fire.

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NFPA members and public sector officials may submit a question on an NFPA code or standard. Responses are provided by NFPA Technical Staff on an informal basis.

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