What percentage does Segment 2 display when it is shown before going out?

Segment 2 of the MSA G1 SCBA display reflects the current air supply remaining in the cylinder. When this segment is shown before going out, the percentage displayed ranges from 25% to 36%. This range indicates that the user has a sufficient amount of air to enter a hazardous environment, while still maintaining awareness of their air supply as they proceed.

Understanding the meaning of these percentages is critical, as they help users gauge how much longer they can operate safely before needing to consider exiting the hazardous area to replenish their air supply. Displaying this exact range accurately provides vital situational awareness for personnel working in environments where air quality may be compromised.