What is the purpose of a fixed breathing air system on an aerial apparatus?

The primary purpose of a fixed breathing air system on an aerial apparatus is to allow firefighters to breathe clean air. This system is essential for ensuring that firefighters have access to a safe and breathable air supply, particularly when they are operating in smoke-filled or hazardous environments. The presence of a dedicated breathing air system supports their safety and operational efficiency, enabling them to perform their duties effectively without the immediate need for self-contained breathing apparatus (SCBA) units, depending on the situation.

While assisting with pressure systems, filtering smoke from the cabin, or enhancing visibility in smoke-filled environments are important aspects of firefighting operations, they are not the core function of a fixed breathing air system. The crucial role of providing breathable air directly addresses the health and safety needs of firefighters engaged in fire suppression and rescue operations.