Why not install a large 24X24X4 merv 11 air filter and forget about any potiential health problem with even light doses of ozone. A fresh air change in 4-5 hours during calm moderater weather would make it perfect. 20 years ago, ozone was in. We found that sensitive occupants had problems. I would avoid exposure unless you had a specific problem that really needed strong medeation.
Bear Rules: Keep our home <50% RH summer, controls mites/mold and very comfortable.
Provide 60-100 cfm of fresh air when occupied to purge indoor pollutants and keep window dry during cold weather. T-stat setup/setback +8 hrs. saves energy
Use +Merv 10 air filter. -Don't forget the "Golden Rule"