Originally Posted by
hexboy
Design of oxygen mask - #108 If the mask were shaped to fit nose and mouth, similar to that used in hospital intensive care units, it would be much simpler to fit correctly in the panic mode when they drop in front of the pax.
In theory yes but in practice, I would be pretty confident in saying that some people will still get it wrong.
Have a search for people wearing life jackets in the Hudson ditching. There's a bloke that is wearing one the wrong way (they are not front/back specific, but they can be top/bottom!)
P.S I think the bags on the mask typically also have the instructions/diagram on them.