@DOTsGtGrandbaby @IanRicksecker @mehdirhasan @nhannahjones @tylerblack32 @sdschools CO2 doesn't measure filtration. It gives you a baseline rate of fresh outside air which could likely correlate with airborne transmission risk in the absence of filtration. Filtration makes the matter more complicated.
@DOTsGtGrandbaby@IanRicksecker@mehdirhasan@nhannahjones@tylerblack32@sdb不测量过滤。它为你提供了室外新鲜空气的基准速率，在没有过滤的情况下，这可能与空气传播风险相关。过滤使事情变得更复杂。