I conceptualised this project probably years ago at this point. I did quite a bit of research on air particle detectors and what sensors give readings that would be benificial to me, such as a sensor that detects when the air is stale.
For air purifying, I wanted to try a more decenteralized approach to improve filtration speed and air circulation. Thus, I'm thinking of a few of these which all charge on a docking station.
Here's a render of the idea which I created moments ago: