How long does a user need to remain motionless for the PASS to enter pre-alarm?

The Personal Alert Safety System (PASS) is an essential feature of the MSA G1 Self-Contained Breathing Apparatus (SCBA), designed to alert users in the event of a man-down situation. For the PASS device to enter pre-alarm mode, the user must remain motionless for a specific period. In this case, that time is 18 seconds.

The significance of this feature lies in its ability to enhance safety during emergencies. If a firefighter becomes incapacitated, the PASS will activate after the user has been still for the allotted time, alerting fellow responders to the need for assistance. This mechanism emphasizes the importance of movement and awareness in hazardous environments, as it allows first responders to monitor each other’s safety effectively.

Understanding this timing is crucial for SCBA users as it directly impacts their operational procedures, especially in life-threatening scenarios where every second counts.