Air King Frak90 90 CFM 1.5 Sone Ceiling Mounted Fire and Energy Star Rated Exhaust Fan

The Fire Rated Exhaust Fan Series is designed to automatically shut off and seal the duct from the rest of the dwelling once the temperature of the air passing through the damper exceeds that of the fusible link. These fans meet the NFPA (National Fire Protection Association) Standard 90A and the Ceiling Radiation Damper is ULC Classified and rated for 3-4 hour fire resistance. Three part system includes a Housing, Motor/Blade/Grill and a Ceiling Radiation Damper with a fusible link. Low profile and durable, all metal grill with a painted white finish almost disappears into the ceiling.