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- :Lei, Zhipeng ;Yang, James2014 | J Occup Environ Hyg. 11(4):227-237:The contact area, as well as the contact pressure, is created when a respiratory protection device (a respirator or surgical mask) contacts a human fa...
- :Rengasamy, Samy ;Zhuang, Ziqing7 2021 | J Occup Environ Hyg. 18(7):305-313:Recently, total inward leakage (TIL) for filtering facepiece and elastomeric half-mask respirators (EHRs) was measured according to the International ...
- :Vo, Evanly ;Horvatin, Matthew5 2020 | J Occup Environ Hyg. 17(5):231-242:The aim of this study was to develop a new method to measure respirator protection factors for aerosol particles using portable instruments while work...
- :Zhuang, Ziqing ;Bergman, Michael6 2017 | J Occup Environ Hyg. 14(6):473-481:This study assessed key test parameters and pass/fail criteria options for developing a respirator fit capability (RFC) test for half-mask air-purifyi...
- :Lei, Zhipeng ;Ji, Xuewu11 2014 | Ann Occup Hyg. 58(9):1175-1185:In a respirator fit test, a subject is required to perform a series of exercises that include moving the head up and down and rotating the head left a...
- :Bergman, Michael ;Zhuang, Ziqing2015 | J Int Soc Respir Prot. 32(2):50-64:National Institute for Occupational Safety and Health (NIOSH)-approved N95 filtering-facepiece respirators (FFR) are currently stockpiled by the U.S. ...
- :Vo, Evanly ;Zhuang, Ziqing2016 | Aerosol Sci Technol. 50(10):1044-1054:The aim of this study was to apply a direct-reading aerosol instrument method and an elemental carbon (EC) analysis method to measure the mass-based p...
- :Zhuang, Ziqing ;Bergman, Michael2 24 2016 | J Occup Environ Hyg. 13(4):265-274:A three-year study examined changes in N95 filtering-facepiece respirator (FFR) fit at six-month intervals and the relationship between fit and change...
- :Janssen, Larry ;Zhuang, Ziqing2014 | J Occup Environ Hyg. 11(4):218-226:Workplace protection factors (WPFs) are intended to measure the ability of a respiratory protective device (RPD) to reduce contaminant exposure when u...
- :Vo, Evanly ;Zhuang, Ziqing7 2013 | J Aerosol Sci. 61:50-59:Carbon nanotubes (CNTs) are currently used in numerous industrial and biomedical applications. Recent studies suggest that workers may be at risk of a...
- :Gao, Shuang ;Kim, Jinyong7 2016 | Ann Occup Hyg. 60(6):748-760:Objectives:The first objective of this study was to evaluate the penetration of particles generated from combustion of plastic through National Instit...
- :Vo, Evanly ;Rengasamy, Samy4 2021 | Am J Infect Control. 49(4):416-423:Background:A major concern among health care experts is a shortage of N95 filtering facepiece respirators (FFRs) during a pandemic. One option for mit...
- :Zhu, Jintuo ;He, XinjianMay 13 2019 | J Occup Environ Hyg. 16(7):440-445:The objective of this pilot study was to determine the minimum operational flow for loose-fitting powered air-purifying respirators (PAPR) used in hea...
- :Roberge, Raymond J. ;Palmiero, Andrew J.2014 | J Occup Environ Hyg. 11(5):338-341.:Fifteen subjects underwent three replicates of quantitative respirator fit-testing with N95 filtering facepiece respirators that were donned with the ...
- :Zhuang, Ziqing ;Liu, Yuewei11 2015 | J Occup Environ Hyg. 12(11):753-760:Inter-panel variability has never been investigated. The objective of this study was to determine the variability between different anthropometric pan...
- :Bergman, Michael ;Lei, Zhipeng2019 | Proc 20th Congr Int Ergon Assoc IEA 2018 I Healthc Ergon (2018). 819:176-185:Loose-fitting powered air-purifying respirators (PAPRs) are used in healthcare settings to reduce exposure to high-risk respiratory pathogens. Innovat...
- :Bergman, Michael S. ;Zhuang, Ziqing2014 | J Occup Environ Hyg. 2014; 11(2):117-125:Improved respirator test headforms are needed to measure the fit of N95 filtering facepiece respirators (FFRs) for protection studies against viable a...
- :Vo, Evanly ;Zhuang, ZiqingJuly 15 2015 | Ann Occup Hyg. 59(8):1012-1021:Filtering facepiece respirators (FFRs) and elastomeric half-mask respirators (EHRs) are commonly used by workers for protection against potentially ha...
- :Rengasamy, Samy ;Zhuang, ZiqingAug 2018 | J Occup Environ Hyg. 15(8):616-627.:The International Organization for Standardization (ISO) standard 16900-1:2014 specifies the use of sodium chloride (NaCl) and corn oil aerosols, and ...
- :Bergman, Michael S. ;He, Xinjian2015 | J Occup Environ Hyg. 12(3):163-171:This study assessed the correlation of N95 filtering facepiece respirator (FFR) fit between a Static Advanced Headform (StAH) and 10 human test subjec...
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