Originally Posted by eburacum45

If the oxygen content of an atmosphere remains the same but the pressure varies, does flammability increase with total pressure? That is, does the increase in partial pressure of oxygen increase flammability? It looks like that is the case, if I am interpreting the graphs from 01101001's link correctly. That means that flammability on the top of Everest is reduced, but is slightly greater on the shores of the Dead Sea when compared to the situation at sea level.