I agree, cannot beat a good carbon filter.Not all strains are created equal when it comes to smell do yourself a favor spend the money and get a filter the peace of mind of no smell is priceless!
umm...yea not a good idea, you definitely dont want to smell the neighbourhood like weed, adn in the winter its going to be visible as it billows from your house. horrible horrible idea.If your in the situation that your plants can be beside or under a window, use a window fan and have it blowing outwards, open another window somwhere else in the apt/house and fresh air will be drawn in and smelly air out. That's what I'm doing now seems to work for me and cheap too!