What is the minimum mounting height for an audible notification appliance?

What is the minimum mounting height for an audible notification appliance?

• A. 72 inches
• B. 90 inches to the top of the device
• C. 108 inches
• D. 60 inches

Answer: (B)

Audible notification appliances are mounted at a height that keeps them unobstructed and allows sound to reach occupants effectively in a typical room. The minimum height to the top of the device is 90 inches above the finished floor. This height helps ensure the device isn’t easily blocked by furniture or people, reduces the chance of tampering, and supports consistent sound distribution across common spaces. Lower options would make the device more likely to be obstructed or damaged and could reduce audible effectiveness during an emergency. A height higher than the minimum isn’t required to meet the standard, so 90 inches to the top of the device is the appropriate minimum.

Audible notification appliances are mounted at a height that keeps them unobstructed and allows sound to reach occupants effectively in a typical room. The minimum height to the top of the device is 90 inches above the finished floor. This height helps ensure the device isn’t easily blocked by furniture or people, reduces the chance of tampering, and supports consistent sound distribution across common spaces.

Lower options would make the device more likely to be obstructed or damaged and could reduce audible effectiveness during an emergency. A height higher than the minimum isn’t required to meet the standard, so 90 inches to the top of the device is the appropriate minimum.