Particle-Size-Dependent Filtration Efficiency, Breathability, and Flow Resistance of Face Coverings and Common Household Fabrics Used for Face Masks During the COVID-19 Pandemic.
COVID-19
Face covering
Filtration
Flow resistance
Pressure differentiation
Journal
International journal of environmental research
ISSN: 2008-2304
Titre abrégé: Int J Environ Res
Pays: Switzerland
ID NLM: 101590599
Informations de publication
Date de publication:
2022
2022
Historique:
received:
06
09
2021
revised:
24
12
2021
accepted:
27
12
2021
entrez:
17
1
2022
pubmed:
18
1
2022
medline:
18
1
2022
Statut:
ppublish
Résumé
During the COVID-19 pandemic, the increase in demand for protective equipment caused a global shortage and homemade barrier face coverings were recommended as alternatives. However, filtration performances of homemade face coverings have not been fully evaluated. Test methods in the ASTM standard (F3502-21) were used to evaluate filtration efficiencies (FE) and breathability (pressure drop, Δp) of face coverings and home fabric materials commonly used during the pandemic. Submicron particulates FE was measured by particle transmission through face covering samples using a Condensation Particle Counter equipped with differential mobility analyzer and electronic manometer. Flow resistance of 0.1 μm-diameter fluorescent nanoparticles in droplets was determined by measuring fluorescence intensity of residual collected at the reverse side of samples. The size-dependent FE (3-94%) and Δ The online version contains supplementary material available at 10.1007/s41742-021-00390-6.
Identifiants
pubmed: 35035493
doi: 10.1007/s41742-021-00390-6
pii: 390
pmc: PMC8743850
doi:
Types de publication
Journal Article
Langues
eng
Pagination
11Informations de copyright
© University of Tehran 2022.
Déclaration de conflit d'intérêts
Conflict of InterestThe authors declare that they have no conflict of interests.
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