Where is the bypass valve shut-off located?

• A. The translucent and gray button on the regulator, which also houses the forward-facing LED and air status indicator
• B. On the HUD
• C. On the end of the hose
• D. Inside the canister head

Answer: (A)

The bypass valve shut-off is part of the regulator assembly, placed where it’s easiest to reach and control while wearing the gear. In this setup, the translucent gray button on the regulator handles the bypass function and also houses the forward-facing LED and air status indicator. Keeping the bypass control integrated with the regulator means you can quickly isolate or engage the bypass without reaching for other parts of the system, which is crucial in tight or chaotic situations.

The other locations don’t fit because the HUD is for displaying air status, not for controlling airflow; the end of the hose is simply the connection to the facepiece; and inside the canister head is where the filters or purification media reside. None of those are designed as the bypass control, so the regulator-mounted button is the correct location.