I have an old XL15 air purifier. Whats the recommended setting?
Under normal circumstances, on this model the recommended “Purifier” (O3 output) setting is at or between 500-1000 sq.ft. (refer to the Owner’s Manual) and the “Fan” should be set at 12:00 o’clock position. These controls could be adjusted up or down however in case it becomes necessary, depending on the environment where the unit is placed, user sensitivity, and other factors. Again, please refer to the instructions in the Owner’s Manual and review additional FAQs in this section for proper ozone levels. If you did not find answer to your question, please visit the Support page for more information from which you can also contact us.
