What system automatically detects fire and discharges an extinguishing agent?

An automatic fire extinguishing system is designed to detect a fire and autonomously discharge an extinguishing agent to combat the flames. This type of system is crucial in maintaining safety within a commercial building, as it provides immediate response to a fire incident without requiring manual intervention.

While an automatic smoke detection system can alert occupants or monitoring services to the presence of smoke—often an early indicator of fire—it does not actively extinguish a fire. An automatic sprinkler system, which is commonly found in many commercial buildings, typically functions by releasing water when a heat-sensitive element is activated; however, it is specifically tailored for managing fires that reach certain temperatures rather than seeking out and extinguishing flames automatically. An automatic water mist system, although capable of suppressing fires using fine water droplets, is also distinct and not classified as a fire extinguishing system in the way that the corrected term encompasses more diverse methods of suppression.

Thus, the primary function of the automatic fire extinguishing system is its dual capability of detection and activation of fire suppression measures, making it the most comprehensive choice for this particular question.