Do you think I should drop down to a 4 in duct for the smaller room and keep the 6 in duct for the bigger (For Flowering) or put dampers on. the smaller area is going to be for sprouts, clones, maybe a little veg, and hanging and drying. I have very little air exchange now and my plants look pretty good. I'm sure with the system I'm putting in they'll be great, but I really want to control the odor when it peaks up. Thanks Rhizome