Forum Discussion
jrnymn7
Dec 12, 2014Explorer
Pnichols,
Good point. Positive pressure is also used to keep stairwells (in apartment and commercial buildings) free from smoke during a fire. That's why there is a woosh of air when one opens the door.
In certain cases, cracking a window and running a roof exhaust may actually draw fumes into the rv.
Good point. Positive pressure is also used to keep stairwells (in apartment and commercial buildings) free from smoke during a fire. That's why there is a woosh of air when one opens the door.
In certain cases, cracking a window and running a roof exhaust may actually draw fumes into the rv.
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