Earozoru Kenkyu
Online ISSN : 1881-543X
Print ISSN : 0912-2834
ISSN-L : 0912-2834
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Volume 38, Issue 4
Displaying 1-6 of 6 articles from this issue
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Feature Articles—Biological Effects of Aerosols in the Workplace and Occupational Health Countermeasures—
(Research Paper)
  • Comparing the Results of Mask Fit Tests for Replaceable and Disposable Masks—A Study of Japanese Male Welders—
    Mayumi Tsuji, Hajime Hori, Mami Kuwamura, Masaki Ninomiya, Dai Fukuish ...
    2023 Volume 38 Issue 4 Pages 240-247
    Published: December 20, 2023
    Released on J-STAGE: December 20, 2023
    DOIhttps://doi.org/10.11203/jar.38.240
    JOURNAL RESTRICTED ACCESS
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    The authors have previously reported that welders with high concentrations of welding fumes in their breathing air zone are exposed to dust and Mn if there is leaking air owing to the lack of fitness between respirators and the wearer’s face when using human samples in Japan. The mask fit test confirms whether or not the wearing condition of the wearer’s face and the facepiece of the respirators are used appropriately. The purpose of this study was to investigate whether or not quantitative mask fit test results differed between replaceable and disposable masks. The participants of the mask fit test were 93 male welders in Japan. Replaceable and disposable masks were worn by 85 and eight welders, respectively. In the mask fit test results, the failure rate of the disposable masks was significantly higher than that of replaceable masks. The result may be because the mask did not fit the face or was worn improperly. Masks are the last line of defense to protect welders’ health. Particularly, when using a disposable mask, welders should carefully check whether the mask fits or not.

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Feature Articles—Biological Effects of Aerosols in the Workplace and Occupational Health Countermeasures—
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