ASHRAE Position Document on Infectious Aerosols (April 14, 2020) (PDF) (Posted April 2020)

https://www.ashrae.org/file%20library/about/position%20documents/pd_infectiousaerosols_2020.pdf

Health Risks of Indoor Exposure to Particulate Matter: Workshop Summary

https://www.ncbi.nlm.nih.gov/books/NBK390368/