Geraldo said:As for the EVAC-U8 emergency escape smoke hood, I say carry a large trash bag to put over your head. It will shrink wrap your head just as well in the heat at a fraction of the cost. Seriously, the problem with this stupid invention is that it filters particulate out of the air, but it does nothing to address the fact that the oxygen level will be well below that required to maintain conciousness.
1) The EVAC-U8 hood "plastic" is made of Kapton which won't melt on your face where the garbage bag would.
2) Actually, the EVAC-U8 hood has a catalyst to convert the carbon monoxide to carbon dioxide. Not as good as fresh air, but it does more than you suggest.
EVAC-U8
Note, they also have a newer product called the EVAC+ which is easier to breath through, is lighter, and is more shock resistaint.
-john