Why is it necessary to wear SCBA during overhaul operations?

Wearing a Self-Contained Breathing Apparatus (SCBA) during overhaul operations is essential due to the potential presence of hazardous concentrations of smoke and chemicals that can exceed short-term exposure limits. After the main fire has been extinguished, residual smoke, carbon monoxide, and other harmful substances can remain in the environment. Overhaul activities, which involve checking for hidden fires, removing smoldering materials, or ventilating the area, can disturb these hazards and create a significant risk to the respiratory system.

The use of SCBA ensures that firefighters are protected from inhaling toxic fumes or experiencing respiratory distress. It provides an independent supply of breathable air, allowing firefighters to operate safely in conditions that are often unpredictable and potentially dangerous. Thus, maintaining proper respiratory protection is crucial during these operations to safeguard the health and safety of teams who are actively working to fully extinguish the fire and prevent rekindling.