I live in second floor (top floor) and in a two-bedroom small sized apt. people live all around me. I grow in the guest room where the window is facing the back of apt. I keep that window open all the time. I run my central air constantly, which has a double-layer of carbon filtering material sewn into the standard filter. I also use three True Air by Febreeze air filters inside the grow room. I'm growing 20 trainwreck plants and the smell is noticeable upon entering my house. My worry has always been with the walkway in front of my door and the people passing by. I've rarely smelled anything after coming home from work, but it's a worry that can drive a grower mad, insane and paranoid beyond comprehension. A new worry i have is the following: My central air running keeps the grow room pressurized so that the air pushes out the window i leave open outside to the back of the apt... I wonder if the smell goes up or down ? If it does then I'm sure the downstairs neighbors might smell it when they use their backdoor.... So now, even though I'm broke from lights, pots, building materials, power bill and so on, i am trying to find extra funds to sew a double layer filter into the screen on that window to help the smell... I also want to seal the grow room door the best I can with weatherstripping so minimal air from the grow area is pushed into the rest of the house. I also use glade plugins, the auto spray thing in my living room.... My wife called me today and told me the smell really stinks. Man, the biggest worry about growing is coming home one day to find the blue and red lights flashing in front of your house. I think what I will do when that happens. If it ever does, I hope my wife is with me so we can run away at least for a night before I spend 10-15 in the slammer for growing my passion in life.