I don't know if a bigger fan is an option, but I can tell you what I'm workin with. Bear with me, it may be hard to explain. I have a 6" inline fan sitting on top of my tent. As soon as it goes inside it hits a Y. The first half of the Y fitting just has a small piece of ducting on it extending it. It pulls all of my air out of the tent, I guess you could try hooking up your filter here. But I don't know if your fan is strong enough. The other half of the Y runs directly through my hood, with the glass on, then out of my tent and out into fresh air.
I explained it backwards but im basically pulling air from 2 places with one fan. Fresh untouched air from outside through my 1000 watt hps, and the air from inside my tent. I wanted to just use a reflector wing, but heat was an issue. I set up a dry run and temps hit 110 degrees. In my situation, I have an entire room for growing. And I wound up just hanging my carbon filter on a 6" fan that I have to exhaust the whole room. And I exhaust the tent right next to it. That way I don't have to worry about whatever smell escapes the tent every time I open it. And my whole room is going to smell when it comes time to chop down and trim. I don't have any clear pics of it, but maybe I can get some when it's time for the lights to come on, the ladies are sleeping.
I'm new at this myself. I tried to research as much as I could before I started, but I'm still getting curveballs. You can check out my journal if you want. I'm just about a month and a half in from starting with clones. Good luck with your grow man.