AQ Readings Comparable?

I posted earlier about the California Wildfires and Air Quality. Got some good suggestions on Air Quality sensors. Purchased the Plume Labs Flow 2.

But I’m confused. It does not appear values such at PM 2.5 are equivalent on Flow 2 vs. what Purple Air publishes online. And the AQI numbers seem to be calculated differently.

Help, I just want to check my local Air Quality, and compare to what’s online.

Thanks for your thoughts.

2 posts were merged into an existing topic: Air Quality Sensor