Late last week, the CDC issued new guidance on K-12 school reopening. It was accompanied by a handbook from the US Department of Education. School districts are no doubt scrambling to digest this new guidance and evaluate their plans in light of it. Parents and teachers are wondering what this will mean for their schools. Here are some key...
Now that APS has started to deliver 1,450 portable air cleaners to classrooms, we have a few tips for any teachers or staff trying to figure out where to place them. When positioning the air purifiers in the classroom: A single air cleaner should ideally be placed centrally. If several purifiers are installed, the instruments should be...
New modeling on transmission by aerosols compares the reproduction rates for different indoor scenarios, including schools with distancing and masks. The upshot of the article is that by taking into account the ventilation standards for public places and the behavior (time spent, type of breathing) of their occupants, the number of people...