i have a question: I am doin my first room ever ,using bathroom for vegetative and bedroom for flowering. I have a problem with putting holes in the ceiling of the flowering room, but i must do something about moving/circulating some air and also the smell. so my question is: can i put a carbon filter with a vortex fan on the top of it so at least the air will be filtered and circulated? I understand extracting it would be the way to go but will just filter/fan be better then just a fan with no filter'? and if i can put the filter in the room with no extraction ,will it help if i run a duct from the fan which will be sucking air through the carbon filter and run the duct across the room so it blows the filtered air on the other side of the room?