How should a mask be handled after removing it from a POB?

After removing a mask from a portable oxygen bottle (POB), it is important to handle it properly to ensure safety and hygiene. Placing it in the airsick bag is the correct practice because it helps prevent contamination and ensures that the mask is properly contained. This prevents the spread of pathogens and keeps the cabin environment safe for other passengers and crew.

Returning the mask to a storage compartment is not appropriate since it may still carry contaminants, which could pose health risks if reused without proper cleaning. Similarly, attempting to clean the mask for reuse isn't advisable in this context, as airline protocols typically dictate that masks are single-use or require specific sterilization methods that may not be feasible during flight. Disposing of it in the lavatory is also unsuitable, as it could lead to blockages or sanitation issues. After use, a mask should be contained in an appropriate waste receptacle where it can be handled safely.