2024 NFPA 90B Standard for the Installation of Warm Air Heating and Air-Conditioning Systems, ISBN: 978-1455930524

NFPA 90B provides requirements that cover the construction, installation, operation, and maintenance of systems for warm air heating and air conditioning, including filters, ducts, and related equipment to protect life and property from fire, smoke, and gases resulting from fire or from conditions having manifestations similar to fire.