'We worked with a leading engineering firm and experts specializing in buildings systems to better understand the simple steps schools can take to reduce exposure in the classroom.'
By Nick Bartzokas, Mika Gröndahl, Karthik Patanjali, Miles Peyton, Bedel Saget and Umi Syam
https://www.nytimes.com/interactive/2021/02/26/science/reopen-schools-safety-ventilation.html
