Physics can be so ingenious
We don’t allow cooking vapours and smells to arise in the air first, instead we suction them right away on the spot where they are generated - straight at the cooktop or from the saucepan, roaster, pan, grill. And we do this not by magic but by applying the basic principles of fluid mechanics. For this we simply use a cross flow which is greater than the speed at which the cooking vapours rise.