Treatment time can be adjustable according to the room size and air quality. If you have no clues, It can start from 10 minutes and increase the setup time if necessary.
All ozone machines are for UNOCCUPIED space only. Ensure that NO people (and NO pets) in the room when its working. Allow at least one hours after treatment is finished before occupying the space. When entering the room, please open the doors and windows and ventilate in time