The research is clear that air exchange and filtration curb the spread of COVID and other diseases, but upgrading systems is expensive, and there is little federal authority over indoor air quality.
Americans are abandoning their masks. They’re done with physical distancing. And, let’s face it, some people are just never going to get vaccinated. Yet a lot can still be done to prevent covid infections and curb the pandemic. A growing coalition of epidemiologists and aerosol scientists say that improved ventilation could be a powerful tool […]