Fan size for grow room the room is 4`x6`x7` this is for Odor control use ! The fan will be used whit a Activated Carbon Filter Scrubber fan size ? Activated Carbon Filter size ? Fan time or setup for on/off time`s (using a timer) my hood is 1000W air cooled ! Growing in 2 x 2` x 4` tray`s right now I do not have a Odor control setup !......but no Odor problems ! But I am going to flower very soon ! Will the Odor get stronger in the flower cycle ?