What should the duration for PBE usage be?

The duration for PBE (Protective Breathing Equipment) usage is typically set at 15 minutes. This duration is designed to provide sufficient oxygen supply for personnel in emergency situations where smoke or harmful gases may be present. The 15-minute time frame is based on average scenarios where a crew member may need to conduct vital tasks or evacuate areas within that period.

In emergency contexts, quick decision-making and effective task execution are crucial, and the PBE is designed to accommodate these needs. Thus, knowing that the equipment is effective for approximately 15 minutes allows crew members to manage their time and actions optimally during critical situations.