Since its creation in 1899, NFPA 90A, Standard for the Installation of Air-Conditioning and Ventilating Systems, has been a source of information and standards essential to safety in the built environment. This ANSI-approved heating, ventilation, and air conditioning standard includes measures to prevent smoke migration and lower the risk of fire, gasses, and associated dangers in forced air systems. NFPA 90A is a useful tool for maintaining code compliance and assisting in the protection of people and property, including everything from general definitions and criteria to the integration of ventilation and air conditioning with building construction, controls, and acceptance testing. You receive comprehensive details on every aspect of system construction, operation, and maintenance, including ducts, filters, and other equipment.