AS ONE of the foremost experts in the field of airborne pathogen transmission, I have a question: Who was the person(s) who recommended the plexiglass barriers in our restaurants, grocery stores, and nearly every other public place?
Over the past year, as the president elect of the Granite State ASHRAE (American Society of Heating, Refrigeration and Air Conditioning Engineers), I have hosted multiple webinars on airborne pathogen transmission from top scientists and airflow modeling experts in the world, and not one of them has said plexiglass is an effective strategy for mitigating the transmission of COVID-19, or any other airborne pathogen.
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