Quote Originally Posted by ThaRaven7
Soooo, I've been looking at in-line ozone generators, and I think I found one I like.

Uvonair 12 Inch CD-In-Line Duct Ozonator

Now this may be overkill... but it fits a 12" duct, and it's not THAT expensive. Not to say $750 is cheap.

EDIT: With this big monster, could I go with something cheaper and less efficient for the other exhaust? Or do I need something as effecient?
You only need to scrub the exhaust that is coming from the room. The lights you will duct as a closed loop. Air in from external source > through the lights > air out externally. No need to scrub this air as it never comes into contact with the room air.