Air exchanged every 5 minutes is sufficient.

You are going to want to run two fans, one for the lights alone in a closed loop and one for the room to exchange the air and to deal with odor. Agree that an ozone solution is the way to go in this situation. Just be sure it vents external to the building.

Again, check my signature for a link to calculating your fan needs. It is best to account for the variables and do a proper workup.