On Sat, 17 May 2014 15:21:09 -0400, krw wrote:

As long as you buy the water from their concessionaires,
they don't take it away.

Seems to me, an emergency kit for an airplane, could include
a wash cloth of a size sufficient to cover both your nose and
mouth, in a plastic bag.

The use model would be that you go through airport security
with the wash cloth dry.

Then, when you get to the gate, you soak it from a nearby
water fountain or bathroom wash sink.

What else would you put in the cabin-fire emergency kit
that makes sense (note that a smoke hood doesn't really
make economic sense, as outlined in the papers reported).