Regarding air locks in waste load-out chambers, which statement is correct?

• A. They allow personnel to pass while maintaining a barrier effect.
• B. They are used only for waste and personnel should never pass through these air locks.
• C. They are optional and rarely used.
• D. They are primarily for odor control.

Answer: (B)

Air locks in waste load-out chambers are built to preserve the containment barrier while waste is moved. Their primary function is to provide a controlled, sealed path for waste so air, vapors, and contaminants don’t leak into cleaner areas. Because of that, personnel should not pass through these air locks; doing so would break the barrier and increase exposure risk. The doors are interlocked and the space maintains pressure differences to keep the contamination contained. This is why the statement that they are used only for waste and that personnel should never pass through aligns with their safety role. The other options miss the containment purpose, suggesting personal passage, optional use, or odor control as the main function.