A mathematical model for accurately predicting face mask wearer?s inhalation exposure to self-exhaled and external pollutants

Zhongjian Jia,Zhengtao Ai, Zitian Zhang,Cheuk Ming Mak,Hai Ming Wong

Separation and Purification Technology（2024）

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Abstract

•Transient-state mathematical model was firstly established and validated;•Impact of influencing parameters on leakage flow rate via gap was investigated;•Inhalation exposure to self-exhaled and external pollutants was evaluated;•Protective performance contradicts on inhalation exposure to self-exhaled pollutant.

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Key words

Mathematical model,Face mask,Sinusoidal breathing pattern,Leakage via gap,Personal respiratory protection

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