If you only grew a couple as in two nice plants. Would smell still be a concern as the plants matured. I am considering a small spot, and wonder if an exhaust fan, and osilating fan who create enough airflow. I believe in total stealth so I am just wondering what amount of smell to expect from 2 nice size trees. Will I be overwhelmed as soon as I enter the room. Or perhaps only knocked back as I open the clost. Any alternatives to making carbon filters. Cant seem to find an EASY how to on the net. What about air purifier type machines?