The goals of this project are to quantify the benefit of annual fit testing and assess causative factors affecting the temporal changes in respirator fit. Specific aims are to: (1) determine the percentage of fit test failure resulting in a new model and/or size; (2) identify differences between filtering facepieces and elastomeric respirators; and (3) investigate the effect of weight change, face change, and other factors on temporal changes in respirator fit.
29 CFR 1910.134
ISO TC94 SC 15
OSHA, California-OSHA, ISEA
Lawrence Livermore National Laboratory
Society for Healthcare Epidemiology in America (SHEA)
A field study will be conducted to gather annual fit testing records to determine the percentage of fit test failure resulting in a new model and/or size. Differences between filtering facepieces and elastomeric respirators will be investigated.
A laboratory study will be conducted to assess causative factors affecting temporal changes in respirator fit. The possible causative factors include: weight gain or loss, face size change, 3-D scans and nose shape change, wrinkling and scarring, medical procedures, BMI, percent body fat, height, age and gender.
Develop a field study protocol
Develop a lab study protocol
None for FY06
None for FY06
Page last modified: July 23, 2007
Page last reviewed: July 23, 2007
(archived document) Content Source: National Institute for Occupational Safety and Health (NIOSH)