When the PBE starts to deplete, what color do the lights flash?

When the Protective Breathing Equipment (PBE) begins to deplete, the lights will flash a red-green pattern. This color-coded alert system is designed to provide clear, immediate feedback to users about the status of the breathing equipment. The red color typically signifies a warning or a critical condition, indicating that the oxygen supply is low. The addition of green suggests that the equipment was functional until that point, underscoring the importance of monitoring the lights for timely action. This flashing warning helps ensure safety during emergency situations, allowing personnel to quickly respond to changes in the equipment’s readiness.