Much more should be done to improve indoor air quality. Joseph G. Allen, associate professor and director of the Healthy Buildings program at Harvard University’s T.H. Chan School of Public Health, has pointed out that current standards for ventilation and filtration for indoor spaces, except for hospitals, are set for bare minimums, not designed for infection control. More concrete guidelines and standards would help. He says schools are generally designed for three air exchanges per hour; that’s too low, and many don’t even reach that.

Source: Washington Post December 18, 2021 04:30 UTC