I hate this kind of hyperbole because it obscures the real dangers. No one is going to suffocate any time soon. Atmospheric CO2 is around 450ppm. The CO2 in a meeting room of a typical office can easily reach 1500ppm or more[1]. Is everyone in meeting rooms "suffocating"?
[1] https://www.popsci.com/conference-carbon-dioxide-tired-offic...