Experiment Shows the Length of Time Spoken Droplets Remain Airborne
Droplets linger in the air for more than 8 minutes
The report, from researchers at the National Institute of Diabetes and Digestive and Kidney Diseases and the University of Pennsylvania, was published in the Proceedings of the National Academy of Sciences, a peer-reviewed journal. It is based on an experiment that used laser light to study the number of small respiratory droplets emitted through human speech.
The answer: a lot.
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