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Abstract
This study investigated the variation in fitted filtration efficiency (FFE) of four disposable face masks (N95, KN95, surgical, KF94) among 100 healthy adults (50% female, 50% male). Males exhibited 11% higher average FFE than females for KN95, surgical, and KF94 masks at baseline. A simple ear loop clip modification significantly increased FFE for females (20% on average), but only slightly for males (6% on average). These findings highlight sex as a major determinant of FFE and suggest that simple modifications can improve mask efficacy, particularly for women.
Publisher
Journal of Exposure Science & Environmental Epidemiology
Published On
Jul 02, 2024
Authors
Edward R. Pennington, Jacob S. Griffin, E. Melissa McInroe, William Steinhardt, Hao Chen, James M. Samet, Steven E. Prince
Tags
filtration efficiency
face masks
sex differences
mask modifications
public health

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