Editor Note: Moved from a technical forum and therefore no template. Hi! I'm terrible at this sort of thing so came to this forum for help. I'm trying to figure out how much ozone an air purifier will throw into my indoor air. The unit produces 360 mg/hr. My space is 2500 square feet. Ceilings are 10 feet high. The threshold for ozone safety is 50 ppb. Can anyone help me figure out how long I can run the unit before I reach the 50 ppb threshold?