Based on your diagram I would say that the activated carbon is gonna be blown out of the box. If I were you I would build one of those "Walmart Filters", there's a couple stickies on how to make 'em. Then I'd wrap the outside in the carbon sheet. However you do it though, good luck with it
im pulling air through my box thats why I want it in line.....with cloth over it the carbon shouldent blow around
