Low air alarms on SCBA must include which features?

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Multiple Choice

Low air alarms on SCBA must include which features?

Explanation:
The safety warning for SCBA is designed to alert both the wearer and others when air is critically low. Audible and visual alerts provide immediate, unmistakable notification in smoky or loud environments, and even if the wearer’s hearing is compromised by gear or noise, a flashing visual cue or indicator lets them know to exit or rotate out. Having both types creates redundancy, ensuring that at least one warning is noticed quickly, which is crucial for timely safety actions and a safe evacuation plan. The other options don’t fit this purpose: GPS tracking isn’t about the air supply, voice recording doesn’t convey urgency about remaining air, and self-test on demand relates to device diagnostics rather than a real-time alarm signaling low air.

The safety warning for SCBA is designed to alert both the wearer and others when air is critically low. Audible and visual alerts provide immediate, unmistakable notification in smoky or loud environments, and even if the wearer’s hearing is compromised by gear or noise, a flashing visual cue or indicator lets them know to exit or rotate out. Having both types creates redundancy, ensuring that at least one warning is noticed quickly, which is crucial for timely safety actions and a safe evacuation plan. The other options don’t fit this purpose: GPS tracking isn’t about the air supply, voice recording doesn’t convey urgency about remaining air, and self-test on demand relates to device diagnostics rather than a real-time alarm signaling low air.

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