so in my basement i need to be able to contain the smell of the IBL in the basement and not come up from the floors. i was thinking of builing a room down there big enough for the little bit i need and then layering the inside of the room with fiberglass and a carbon filter in the room and then a carbon filter out side of the room. the only thing between the basement is wood. i cant have any smell upstairs. i know some one will have some excellent advice and i will appreciate any ideas or thoughts thanks - ll84