One other fact that we can keep in mind as to why the advice proposed by the firefighter is correct is that hotter air rises, while cool air will sink.
The firefighter in question offered the advice to exit a burning building by remaining close to the floor. One additional benefit of this proposed method is to avoid the effects of the hot air when attempting to exit, which can be life-saving given the effects that increased heat may have on a person.
Heat can have a variety of negative effects on a person, which include:
- Heatstroke
- Dehydration
- Fainting
- Lower Blood Pressure
- Confusion
and many other life-threatening conditions if the heat is extreme.
The benefit of staying close to the floor in order to avoid the heat may be very small in such extreme conditions, however, even a few degrees of difference can be enough to get out safely at times.
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