This is my first post and grow. I'm only growing two plants that are four weeks in flower following a four week veg. I was able to get a 90 cfm fart fan for free the closet is 3ft by 5 ft and 8 ft tall which from all I've read should Work out as far as ventilation goes, the fan is vented up to attic vent as well. I have very little odor as of now four weeks in flowers are just getting started to take off but have been looking at can filters and DIY filters and such. I guess I really need to know how stinky is it gonna get round here cause I don't even think my fan will push a can filter. Wish I knew how to post some pics with the iPhone thanks for all help.