Like the poster above stated , research yourself But no matter what ozone leak or what was in the Grow room : all the ozone would be gone by 20-30 minutes . Rule of thumb is always give 15-30 minutes before playing in room , other good thing about ozone is the smell factor is how strong it is& if you can smell heavy in your non exastusted area you'll know your leaking .( neg effects are it will burn ur throats and give you headaches )
Thing is all ozone systems will beat a carbon filter in every factor (pest/germs/fungis/smell)
The Hugest suggestion is buy a corona discharge over a uv bulb ozone since they don't require any maintenance and can handle the higher humity /grow-room factors
I used to buy 100lb+ carbon filters , now my 100,000cf corona discharges do a better job and way less space . Dont play on the stupid hype (carbon is awesome and ozone is evil )when your not ozoneing into the room, it's being aired outside and will never touch your room ( they ozone hospitals for safety 24/7)