The use of multiple features in the development of face panels is likely to be inherently better than the use of just facial height and width, but it is not yet well understood which features are directly relevant to fit and how they can best be combined.
Recommendation 4-7: Utilize Multiple Features in the Development of Face Panels.
NIOSH should examine the potential effects of a nonlinear relationship between respirator fit and facial dimensions.
Anthrotech. 2004. A head-and-face anthropometric survey of U.S. respirator users: Final report Prepared by B. Bradtmiller and M. Friess for NIOSH/NPPTL.
Brazile, W. J., R. M. Buchan, D. R. Sandfort, W. Melvin, J. A. Johnson, and M. Charney. 1998. Respirator fit and facial dimensions of two minority groups. Applied Occupational and Environmental Hygiene 13(4):233-237.
Civilian American and European Surface Anthropometry Resource. 2002. Final report from CAESAR. Falls Church, VA: General Dynamics International.
Coffey, C. C., R. B. Lawrence, Z. Zhuang, D. L. Campbell, P. A. Jensen, and W. R. Myers. 2002. Comparison of five methods for fit-testing n95 filtering-facepiece respirators. Appl Occup Environ Hyg 17(10):723-730.
Colten, C. E. July 10, 2006. Presentation to Committee for the Assessment of the NIOSH Head-and-Face Anthropometric Survey of U.S. Respirator Users: Respirators: Design and anthropometry—3M OH&ESD. Pittsburgh, PA: National Personal Protective Technology Laboratory.
Frund, Z. N. July 10, 2006. Presentation to Committee for the Assessment of the NIOSH Head-and-Face Anthropometric Survey of U.S. Respirator Users: Manufacturer’s perspective on anthropometric measurements study & designing masks to meet new panel. Pittsburgh, PA: National Personal Protective Technology Laboratory.
Gross, S. F., and S. W. Horstman. 1990. Half-mask respirator selection for a mixed worker group. Applied Occupational and Environmental Hygiene 5:229-235.