You need to provide more info to get a meaningful reply. All anyone can tell you at the moment is that if you properly carbon filter all your extracted air then it won't smell. The best way to do that is anyone's guess because you haven't provided any useful info.
What is your current grow and ventilation/filtering like?
how many plants? how many lights? how many cfm do your fans move? do you have a filter? how many neighbors do you have? are any of them hot? Need more info to help, dude