Published On: Sat, Jun 27th, 2020

RT by @gypsypillow: The role of mask: comparison of airflow when people wearing and not wearing mask talk and cough. (video: LaVision)

The role of mask: comparison of airflow when people wearing and not wearing mask talk and cough. (video: LaVision)


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RT by @gypsypillow: The role of mask: comparison of airflow when people wearing and not wearing mask talk and cough. (video: LaVision)