Do AirDoctor filters use or output any hydroxyl? Selesthe Borbon March 08, 2023 22:35 No, AirDoctor filters do not use or output hydroxyl. Related articles Do AirDoctor filters emit photocatalytic oxidation? Are AirDoctor filters ozone free? Do AirDoctor filters capture mycotoxins? I have an AirDoctor purifier, do I still need an HVAC filter? How often do I need to replace my AirDoctor HVAC filter? Comments 0 comments Article is closed for comments.