國家衛生研究院 NHRI:Item 3990099045/9657
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    Please use this identifier to cite or link to this item: http://ir.nhri.org.tw/handle/3990099045/9657


    Title: Particle size-selective assessment of protection of European standard FFP respirators and surgical masks against particles-tested with human subjects
    Authors: Lee, SA;Hwang, DC;Li, HY;Tsai, CF;Chen, CW;Chen, JK
    Contributors: Institute of Biomedical Engineering and Nanomedicine
    Abstract: This study was conducted to investigate the protection of disposable filtering half-facepiece respirators of different grades against particles between 0.093 and 1.61 m. A personal sampling system was used to particle size-selectively assess the protection of respirators. The results show that about 10.9% of FFP2 respirators and 28.2% of FFP3 respirators demonstrate assigned protection factors (APFs) below 10 and 20, which are the levels assigned for these respirators by the British Standard. On average, the protection factors of FFP respirators were 11.5 to 15.9 times greater than those of surgical masks. The minimum protection factors (PFs) were observed for particles between 0.263 and 0.384 m. No significant difference in PF results was found among FFP respirator categories and particle size. A strong association between fit factors and protection factors was found. The study indicates that FFP respirators may not achieve the expected protection level and the APFs may need to be revised for these classes of respirators.
    Date: 2016-04
    Relation: Journal of Healthcare Engineering. 2016 Apr;2016:Article number 8572493.
    Link to: http://dx.doi.org/10.1155/2016/8572493
    Cited Times(WOS): https://www.webofscience.com/wos/woscc/full-record/WOS:000372629400001
    Cited Times(Scopus): http://www.scopus.com/inward/record.url?partnerID=zOxMe3b&scp=84962045185
    Appears in Collections:[Jen-Kun Chen] Periodical Articles

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