Im gonna be using a 400w HPS light, with a 4" carbon filter and fan. And I guess Ill use like a small 7" fan to draw air into the box. I was wondering if the filter neutralized the odor completely, so that the air coming out could just be released back into the apartment room, or would I have to run a duct tubing to a nearby window or something?Depends on if you are planning on using an intake fan. what kinda light?