Eastern I think it depends on alot of different factors, i myself have been growing for the past 3 years and have done quite a few different Cheeses from B.b.c. to Exodus to Dready and have never used any odor control and i live opposite a police station, i think that smell is very simalar to heat and it rises, so where my grow is in my loft the smell seems to go up and over the roofs, put it this way i have been standing at the front door waiting for my son and the old bill have walked up and starting chatting to me, But my next door niebour has asked me a couple of times if i could smell weed, i just said no but played it down quite considerbly. just finished a Dready Cheese grow and must say it surprized me.