What button is used to activate the PASS device?

The correct choice is the red button, as it is the standard color for activating the Personal Alert Safety System (PASS) device. The PASS device is a critical safety feature for firefighters that helps to ensure accountability and safety within a hazardous environment. By pressing the red button, firefighters can activate the device, which emits an audible alarm if the user becomes immobile or does not move for a set period. This is crucial for alerting other team members to a potential distress situation, enhancing rescue efforts and improving overall safety during operations.

Each color of buttons on devices typically has specific purposes, with the red button commonly associated with emergency functions across various safety systems. Understanding this color coding is essential for quick reactions in high-stress scenarios typical of firefighting situations.