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Frequency of Fit Testing - FY07

NOTE: This page is archived for historical purposes and is no longer being maintained or updated.
Current Information can be found at: Frequency of Fit Testing - FY08

Objective

  • 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.

Applicable Standards

  • 29 CFR 1910.134
  • ISO TC94 SC 15

Key Partners

  • None

Stakeholders

  • OSHA
  • MSHA
  • ANSI
  • AIHA
  • ISO
  • Respirator Users
Man testing respirator with Portacount

Project Scope


  • 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.

Milestones

  • Develop a field study protocol
  • Develop a lab study protocol
  • Start collecting data per lab study protocol
  • Start collecting data per field study protocol

Outputs

  • Manuscripts published or submitted to peer review journals
  • Presentations to stakeholders or conferences
  • Standards committee meetings & public meetings

Outcomes

  • Improved respiratory protection for workers as a result of assessing fit characteristic changes through testing.
Page last modified: July 23, 2007
Page last reviewed: July 23, 2007 (archived document)
Content Source: National Institute for Occupational Safety and Health (NIOSH)