Which of the following is NOT typically considered part of a retrieval system?

The retrieval system in a confined space rescue context is designed specifically for safely lifting or lowering a rescuer or victim in a dangerous environment. Key components typically associated with a retrieval system include anchor systems, main lines, and belay lines.

Anchor systems provide the necessary secure attachment point for the main line, which is the primary rope used to perform either rescue or retrieval maneuvers. The belay line functions as a safety backup, ensuring that if the main line fails, the individual will still be secured and potentially saved from falling or descending too quickly. These components collectively ensure the safety and efficiency of the retrieval process.

In contrast, a breathing apparatus is not generally considered part of a retrieval system. While it is essential for ensuring the respiratory safety of rescuers working in hazardous atmospheres, it does not play a direct role in the mechanics of lifting or lowering a person. Thus, it stands apart from the other components that are specifically geared towards retrieval operations.