Can’t edit: co2 is a good proxy for VOC’s. CO2 is not a good proxy for pm 2.5, to be clear: this depends on the pm 2.5 in your outdoor air. In other words co2

Can’t edit: co2 is a good proxy for VOC’s. CO2 is not a good proxy for pm 2.5, to be clear: this depends on the pm 2.5 in your outdoor air. In other words co2 is a proxy for indoor/outdoor air exchange, and thus should be a proxy for how fast aerosols are sent outdoors.