Bathroom exhaust fans are the most common way to properly ventilate and control moisture in residential bathrooms. Along with providing effective ventilation, bath fans with a ceiling radiation damper ...

A full line of fire dampers and ceiling radiation dampers is available for use wherever air distribution system ductwork penetrates fire-rated barriers. The line of dampers includes both gravity and ...

Fire and smoke dampers are a proven and effective way to protect duct and air-transfer openings in walls, barriers, partitions, corridors, and shafts. Since the inception of Underwriters Laboratories ...