Where are Smoke Dampers typically installed?

• A. In air ducts that penetrate walls, floors, or ceilings
• B. In electrical panels
• C. In fire extinguishers
• D. In door frames

Answer: (A)

Smoke dampers are placed in the ductwork where air ducts pass through fire-resistance-rated barriers such as walls, floors, or ceilings. Their purpose is to automatically close off the duct to prevent smoke from traveling between compartments during a fire, helping to contain smoke and protect occupants. This is why the typical installation is inside air ducts at those penetrations. They are not located in electrical panels, fire extinguishers, or door frames, which serve other safety functions and do not block smoke movement through duct systems.