ArticleMeasurement : journal of the International Measurement Confederation2021
Filtering efficiency measurement of respirators by laser-based particle counting method.
Article in Measurement : journal of the International Measurement Confederation, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- Reuse of N95/PFF2 masks in clinical practice: morphological and structural analysis.Revista latino-americana de enfermagem · 2024Article
- Electrospun nanofibers for medical face mask with protection capabilities against viruses: State of the art and perspective for industrial scale-up.Applied materials today · 2023Review
- Filtering Efficiency of Sustainable Textile Materials Applied in Personal Protective Face Mask Production during Pandemic.Materials (Basel, Switzerland) · 2023Article
- Microstructural evaluation and recommendations for face masks in community use to reduce the transmission of respiratory infectious diseases.Computer methods and programs in biomedicine · 2022Article
Corrections and comments
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Authors and funding
2 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Respirators are one of the most useful personal protective equipment which can effectively limit the spreading of coronavirus (COVID-19). There are a worldwide shortage of respirators, melt-blown non-woven fabrics, and respirator testing possibilities. An easy and fast filtering efficiency measurement method was developed for testing the filtering materials of respirators. It works with a laser-based particle counting method, and it can determine two types of filtering efficiencies: Particle Filtering Efficiency (PFE) at given particle sizes and Concentration Filtering Efficiency (CFE) in the case of different aerosols. The measurement method was validated with different aerosol concentrations and with etalon respirators. Considerable advantages of our measurement method are simplicity, availability, and the relatively low price compared to the flame-photometer based methods. The ability of the measurement method was tested on ten different types of Chinese KN95 respirators. The quality of these respirators differs much, only two from ten reached 95% filtering efficiency.
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