Brownian motion affects how small particles move around at small scales [0]. This is why HEPA filters can be effective even against smaller particles (which bou

Brownian motion affects how small particles move around at small scales [0]. This is why HEPA filters can be effective even against smaller particles (which bounce around and get caught). Specifically about the Molekule - their claims seemed to be empirically false and the device performed worse than a standard HEPA filter (and they were resistant to allowing independent tests at all). When the tests came out awful their responses were mostly bullshit. [1] [0]: https://en.m.wikipedia.org/wiki/Brownian_motion https://en.m.wikipedia.org/wiki/Brownian_motion [1]: https://www.nytimes.com/wirecutter/reviews/best-air-purifier/#molekule-air-and-air-mini-the-worst-air-purifiers-weve-ever-tested https://www.nytimes.com/wirecutter/reviews/best-air-purifier...