Computer-aided customized shape design of an N95 filtering facepiece respirator

Zhipeng Lei, James Yang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A respirator protects its user by sealing the user's face and filtering hazardous particles from environment. However, faceseal leakages of users-respirators always happen. First, this study investigated a computer-aided technique for designing a well fitted N95 filtering facepiece respirator (FFR) for a subject. The customized N95 FFR includes a customized contact area, a center filtering area, two straps and a nasal clip. Five base contact areas of National Institution for Occupational Safety and Health (NIOSH) headforms were created and the customized contact area was modeled using the mapping relationship between the subject and a NIOSH headform. The center filtering area was designed by considering constraints of N95 FFR shape. Second, this study used simulation-based approaches, including the FE method and computational fluid dynamics (CFD) method, to assess the performance of the customized N95 FFR on the subject. The contact pressure and the faceseal leakage from the subject-customized N95 FFR combination were compared with the results from the subjectexisting N95 FFRs combinations. The comparison showed that the customized N95 FFR provided the subject an optimized contact pressure distribution and no faceseal leakage.

Original languageEnglish
Title of host publication39th Design Automation Conference
PublisherAmerican Society of Mechanical Engineers
ISBN (Print)9780791855898
DOIs
StatePublished - 2013
EventASME 2013 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, IDETC/CIE 2013 - Portland, OR, United States
Duration: Aug 4 2013Aug 7 2013

Publication series

NameProceedings of the ASME Design Engineering Technical Conference
Volume3 B

Conference

ConferenceASME 2013 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, IDETC/CIE 2013
CountryUnited States
CityPortland, OR
Period08/4/1308/7/13

Keywords

  • Customized design
  • Headform
  • Respirator
  • Respirator performance

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