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Home > Exam Questions > ATPL - Airline Transport Pilot Licence > Operational Procedures > Can an ordinary passenger continuous-flow oxygen mask that draws cabin air be relied on as respiratory protection against severe cabin smoke?

296 - ATPL Question Bank in English - Can an ordinary passenger continuous-flow oxygen mask that draws cabin air be relied on as respiratory protection against severe cabin smoke?

Question 296 - Operational Procedures - ATPL - Airline Transport Pilot Licence

Useless because breathing oxygen would explode under smoke conditions

Useless because the oxygen units do not operate under smoke conditions

Possible and recommended

No. It mixes oxygen with cabin air and does not isolate the wearer from toxic smoke.

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