Aerosol filtration efficiency of household materials for homemade face masks: Influence of material properties, particle size, particle electrical charge, face velocity, and leaks

As a consequence of the COVID-19 pandemic caused by the SARS-CoV-2 virus, the widespread daily use of face masks is promoted worldwide. Particle-size dependent filtration efficiencies (FE; d_p = 30 nm–10 µm), applying a particle counting approach, and additionally pressure drops (Δp) were determined for 44 samples of household materials and several medical masks.

 

 

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Citation: Weixing Hao, Guang Xu, Yang Wang. (2021) Factors influencing the filtration performance of homemade face masks. Journal of Occupational and Environmental Hygiene 18:3, pages 128-138. J. Curtius, M. Granzin, J. Schrod. (2021) Testing mobile air purifiers in a school classroom: Reducing the airborne transmission risk for SARS-CoV-2. Aerosol Science and Technology 0:ja, pages 1-18.