What action is NOT recommended with your SCSR during an emergency?

Removing the breathing hose from a Self-Contained Self-Rescuer (SCSR) during an emergency is not recommended because it compromises the unit's ability to provide safe and adequate breathing air. The breathing hose is a critical component that connects the user to the oxygen supply within the SCSR. Disengaging it would expose the user to potentially harmful gases or an oxygen-depleted atmosphere.

In emergencies, the integrity of the SCSR must be maintained to ensure that the wearer can access the oxygen necessary for survival. Actions like testing the functionality or activating the oxygen may be sensible under controlled conditions but should not occur during an emergency unless specifically indicated. Furthermore, maintaining calmness is essential to effectively manage the situation; panic could lead to poor decision-making. Therefore, it is crucial to keep all components intact for the SCSR to function properly when its use is needed the most.