Question: How long will supplemental oxygen last after the masks drop in an emergency? — Submitted by reader John A., N.J. Answer: On typical airliners oxygen generators will last 10 to 14 minutes.

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. NASHVILLE, Tenn. (AP) — A lack of oxygen ...