Journal of Korean Society of Occupational and Environmental Hygiene (한국산업보건학회지)

Korean Industrial Hygiene Association (한국산업보건학회)
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Fit comparison of Domestic N95 Medical Masks in a Fit test

Fit Test를 이용한 국내산 N95 마스크의 교육 후 밀착도 비교

  • Seo, Hyekyung (College of Biomedical Laboratory Science, Shinhan University) ;
  • Kwon, Young-il (College of Biomedical Laboratory Science, Shinhan University) ;
  • Myong, Jun-Pyo (Department of Occupational and Environmental Medicine, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea) ;
  • Kang, Byoung-kab (Korea Institute of Oriental Medicine)
  • 서혜경 (신한대학교 바이오생태보건대학) ;
  • 권영일 (신한대학교 바이오생태보건대학) ;
  • 명준표 (가톨릭대학교 서울성모병원) ;
  • 강병갑 (한국한의학연구원)
  • Received : 2021.01.18
  • Accepted : 2021.03.02
  • Published : 2021.03.31
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Abstract

Objectives: A number of medical institutions have been conducting fit tests to perform seal checks on masks. This study aimed to compare the differences fit factor before and after domestic N95 mask-wearing training through a fit-test. Methods: A survey of 59 healthcare workers was conducted regarding whether they had undergone a fit test or received training on mask-wearing. Further, the fit of two types of domestic N95 masks was measured before and after the training using a QNFT(Quantitative Fit test). The average fit factors before and after training were compared using a paired t-test. Additionally the differences in the fit test pass rate were analyzed using a McNemar test. Results: A statistically significant difference was seen between the fit factors in the fit tests conducted before and after the training (p=0.0015), as well as in the fit of the two types of masks tested (p<0.01). Thus, an improvement in mask fitting was seen after the training, even with differently fitted masks. Conclusions: Upon using a QNFT, a significant increase in the fit factors for N95 masks was observed after training compared with masks that were fitted as usual. This highlights the importance of training in mask-wearing, with the conclusion that training healthcare providers will improve the fit of masks.

Keywords

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