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| 정량적 밀착도 검사에 사용되는 장비 간 밀착도 검사 결과 비교 | |||||
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| 글쓴이 | 관리자 (IP: *.223.176.122) | 작성일 | 2025-04-11 16:27 | 조회수 | 38 |
정량적 밀착도 검사에 사용되는 장비 간 밀착도 검사 결과 비교 Comparison of Fit Performance Between Devices Used for Quantitative Fit Testing <Abstract> Objectives This study aims to compare the performance of fit test equipment with international standards and to provide essential data for the establishment of national standards. Methods This study compared the characteristics and performance of three quantitative fit test(QNFT) devices and evaluated their fit factor measurements for various types of respiratory protective equipment(RPE). A total of 1,350 fit tests were conducted on three different sizes of nine models of respirators, including full-face, half-face, and filtering facepiece respirators. The suitability coefficients and accuracy thresholds of each device were assessed through statistical analysis using ANOVA and ROC-AUC. Results Fit factors measured using three QNFT devices showed no significant differences overall (p=0.547), but variations were observed depending on the type of RPE and device. ROC analysis confirmed that devices B and C exhibited excellent accuracy (AUC > 0.9), comparable to international standards. Despite similar accuracy across all devices, B and C needed higher fit factor thresholds due to differences in sensor sensitivity. Devices B and C required slightly higher cut-off values (119 and 114 respectively) to meet the international standard for device A. Conclusions These findings underscore the significance of ｓelecting devices based on environmental conditions and suggest that devices B and C can serve as viable ａlternatives to device A with appropriate adjustments.
Key words Standardization, fit test devices, QNFT, AUC, cut-off values
▶출처 : 한국산업보건학회지 제35권 제1호, p102-110 |
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| 파일 | 정량적 밀착도 검사에 사용되는 장비 간 밀착도 검사 결과 비교_한국산업보건학회지, 제35권 제1호(2025).pdf(614K) | ||||