An air-aspirating system is categorized by NFPA 72 as which type of detector?

An air-aspirating system is categorized by NFPA 72 as which type of detector?

• A. Fire alarm panel
• B. Smoke detector
• C. Air sampling-type detector
• D. Heat detector

Answer: (C)

Air-aspirating systems work by drawing air from a space through a network of pipes into a sensing chamber, providing continuous, highly sensitive smoke detection over large areas and at very early stages of a fire. NFPA 72 classifies the sensing element in these systems as an air-sampling-type detector, also known as an aspirating smoke detector. This distinguishes it from other detectors like standard point-type smoke detectors or heat detectors, and from the fire alarm panel itself, which is the control unit rather than the detection element. So the categorization is air sampling-type detector.

Air-aspirating systems work by drawing air from a space through a network of pipes into a sensing chamber, providing continuous, highly sensitive smoke detection over large areas and at very early stages of a fire. NFPA 72 classifies the sensing element in these systems as an air-sampling-type detector, also known as an aspirating smoke detector. This distinguishes it from other detectors like standard point-type smoke detectors or heat detectors, and from the fire alarm panel itself, which is the control unit rather than the detection element. So the categorization is air sampling-type detector.