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

  • 제27권4호
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  • Pages.283-290
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  • 2017
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  • 2384-132X(pISSN)
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  • 2289-0564(eISSN)
한국산업보건학회 (Korean Industrial Hygiene Association)
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방진 마스크 필터 교체와 성능 변화의 상관성 조사

Evaluation of the Relationship between Filter Replacement and Filter Performance Change in Particulate Respirators

  • 이헌용 (한국쓰리엠) ;
  • 박지훈 (서울대학교 보건대학원 환경보건학과, 보건환경연구소) ;
  • 윤충식 (서울대학교 보건대학원 환경보건학과, 보건환경연구소)
  • Lee, Heonyung (3M Korea Company) ;
  • Park, Jihoon (Department of Environmental Health Sciences, Institute of Health and Environment, Graduate School of Public Health, Seoul National University) ;
  • Yoon, Chungsik (Department of Environmental Health Sciences, Institute of Health and Environment, Graduate School of Public Health, Seoul National University)
  • 투고 : 2017.09.13
  • 심사 : 2017.12.20
  • 발행 : 2017.12.30
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초록

Objectives: This study aimed to evaluate the relationship between filter replacement and filter performance change in particulate filters used in the workplace. Methods: Three types of particulate respirator filters are mainly used in the workplaces. These were tested against the filter performance safety certification standard for dust masks established by the Ministry of Employment and Labor(MoEL). Used filters were collected to test their performance, such as filter pressure drop, efficiency, and quality factors. All these factors were evaluated by a filter tester. To compare filter performance between used and new ones, the same kinds of new filters were also tested together under the same procedures. Results: A total of 270 used filters were collected for testing. The main reasons to replace the filters were difficulty in breathing(46.2%), dirty/odor influx(19.7%), and a combination of factors(26.7%). The pressure drop for two special class groups was significantly different(new filters: $20.72{\pm}3.33mmH_2O$; used filters: $24.70{\pm}5.26mmH_2O$, p<0.0001). In the case of penetration, new filter groups indicated $0.0032{\pm}0.0040%$, while that of the used filters was $0.0596{\pm}0.1187%$. The quality factor for the used filters($0.34{\pm}0.09$) significantly decreased compared to the new filters($0.53{\pm}0.08$) (p<0.0001). Conclusions: Filter performance including pressure drop, penetration, and the quality factor was evaluated and compared between new and used filters in the workplace. The results showed that general filter performance deteriorated more for change of pressure drop, penetration and the quality factor.

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참고문헌

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