The airborne lifetime of small speech droplets and their potential importance in SARS-CoV-2 transmission
View ORCID ProfileValentyn Stadnytskyi, View ORCID ProfileChristina E. Bax, View ORCID ProfileAdriaan Bax, and Philip Anfinrud
PNAS first published May 13, 2020 https://doi.org/10.1073/pnas.2006874117
Summary: One minute of talking loudly can produce more than 1,000 droplets that float in the air for over eight minutes.
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Then they fall to the ground or land on your office desk or groceries.