This is actually affecting a few of our projects in countries without hardly any air quality monitors where we use(d) these stations at the embassies to calibrate our low-cost open source monitors.

It's really ironic, because this project started on Twitter and also there is a good study out there about how cost effective these monitors are [1].

[1] https://www.pnas.org/doi/10.1073/pnas.2201092119