In which situation would the SCBA PASS alarm sound?

The PASS (Personal Alert Safety System) alarm is designed as a safety feature for firefighters using a Self-Contained Breathing Apparatus (SCBA). It activates primarily when a firefighter has been motionless for a predetermined amount of time, usually set at around 20-30 seconds. This automatic alert is crucial because it acts as a warning signal to other firefighters in the vicinity that a member may be in distress or incapacitated and needs assistance.

This functionality underscores the importance of maintaining situational awareness and the ability to communicate safety concerns within emergency environments. Thus, when a firefighter is stationary for too long, the PASS alarm sounds to help ensure that any possible emergencies are quickly identified and addressed.