Originally Posted by TheAmbler
and Hadow's claims they weren't working: If they all were, can someone provide me with proof. Happy to report it.
Shouldn't you be the one who needs to prove they weren't working, after all, you were happy to report that while evidence suggests otherwise? Had you been following this post you would have found at least one link to another completely unrelated thread explaining in some detail the opperation of the oxygen masks which in turn explains why Hadow, based on his comments was mistaken into thinking they were inopperative. As has been mentioned several times on this post, the fact no one passed out, while not absolute proof suggests they were working although
afaik we don't know what the cabin altitude was at its highest point and for how long.