Visualization and Quantification of Facemask Leakage Flows and Interpersonal Transmission with Varying Face Coverings
Xiuhua Si,
Jensen S. Xi,
Mohamed Talaat
et al.
Abstract:Although mask-wearing is now widespread, the knowledge of how to quantify or improve their performance remains surprisingly limited and is largely based on empirical evidence. The objective of this study was to visualize the expiratory airflows from facemasks and evaluate aerosol transmission between two persons. Different visualization methods were explored, including the Schlieren optical system, laser/LED-particle imaging system, thermal camera, and vapor–SarGel system. The leakage flows and escaped aerosol… Show more
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