Not sure if this is making any sense but here goes:
My pal said, in order to create a positive displacement inside a car to push air out (let's say you're running test pipes and want to make sure the smell is kept out), he says to close your windows and turn your air inside.
Same concept or is it?
My dad burns painted wood and he drives me crazy. Highly toxic and he just doesn't get it. Stubborn he is and won't listen. Well, i'm tired of fighting him on this but I don't want my mom poisoned with the fumes. Is there a way to push the air out? I know if you open windows, the air comes in but that doens't do much.
I want to make sure that the fireplace smell is pushed into the fireplace as much so the smell won't occupy the house.