Ok, I found a good illustration that helped me to understand the designed mentioned by evilcartman: http://homeharvest.com/homeharvest20...Cutaway200.jpg

I'm wondering if a carbon filter, like the one pictured abaove, attached to the end of my exhaust would remove the odors?

Also, which would be preferred? A carbon filter at the end of the exhaust, or a stand alone in room filter, like this: Surround Air XJ3000C Air Purifier with Activated Carbon Filter

Any opinion on which will be more effective in removing odors?

Thanks!