Re: Cannula vs Mask (FAR)

Stefan wrote:
Tom L. schrieb:

I don't know of a equirement for using it, but there is a reequirement
for having it available on board. See FAR 23.1447.

Thanks, found it.

In simple words: FAR 91.211 requires the use of oxygen above some altitude, FAR 23.1447 requires that the equipment be a mask above 18'000 feet.
It does no such thing.
.

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