Air Purifier Odd Behavior

All of a sudden today my Air Purifier was showing an AQI of almost 200 and then it would drop to around 4. It kept cycling back and forth like this and obviously the fan would cycle from low to turbo. I’ve never had an AQI in my house that high before. What’s even more odd is the indoor AQI reading on the app, the circle was updating in real time with only one dot on the graph. So I moved the Air Purifier to another room and is acted normal, with no real time updates on the app AQI circle.

Is it possible that when an AQI number gets very high like over 50, that the circle numbers and color go to real time data? Or was I hacked?