Molekule will adapt to your cleaning needs based on your room size, the selected mode, and optional parameters (available in the app). Based on your inputs, Molekule will calculate and perform an initial clean of the air in the room. The initial clean can take anywhere from 20 minutes to an hour; the progress is displayed on the Molekule display and the app.  

After the initial cleanup, Molekule will maintain the cleanliness of the air in your room. 

If you are moving Molekule from one room to another, quickly tell it what room size it's in and you'll see how long it will take until the air can be considered clean.