Im starting a small grow in a hallway closet that measures 2'x3' and 7' tall, the door closes completely shut like a normal door and I would have to have the door closed most of the time. In order to reduce smell I will also need to have some kind of cabinet or small tent to contain everything in and exhaust it through a carbon filter. My question is, will a closed door allow for enough air to be drawn in for the intake? Also, is it okay to have the exhaust going straight back into the closet?