In the IAC Smoke or Fumes Procedure, what is the required status of Oxygen Masks / Goggles?

In the IAC Smoke or Fumes Procedure, what is the required status of Oxygen Masks / Goggles?

• A. ON, 100%
• B. OFF
• C. DON, Set TO 100%
• D. DON, Set TO 50%

Answer: (A)

In a smoke or fumes situation, the priority is to provide a clean breathing environment and eye protection right away. The oxygen system for the masks should be active and delivering 100 percent oxygen, and the goggles should be worn. This ensures the crew gets maximum oxygen to counteract hypoxia and protects the eyes from irritants in the air. Anything less than 100 percent oxygen reduces protection in a smoky environment, and turning the system off or relying on lower concentration won’t meet the protection needed in these conditions.

In a smoke or fumes situation, the priority is to provide a clean breathing environment and eye protection right away. The oxygen system for the masks should be active and delivering 100 percent oxygen, and the goggles should be worn. This ensures the crew gets maximum oxygen to counteract hypoxia and protects the eyes from irritants in the air. Anything less than 100 percent oxygen reduces protection in a smoky environment, and turning the system off or relying on lower concentration won’t meet the protection needed in these conditions.