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Comprehensive Fit Testing Guidelines for Respiratory Protection

This document outlines the essential procedures and standards for fit testing respiratory protective equipment. It emphasizes identifying the correct make, model, and size, ensuring comfort and proper seal during use. The guidelines cover Quantitative Fit Testing (QNFT) using aerosol methods, and qualitative assessments (QLFT) involving odor and irritation checks. Key recommendations include medical clearance, donning training, and suitability checks for different user scenarios. Emphasis is placed on avoiding facial hair and ensuring adequate time with safety gear prior to testing.

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Comprehensive Fit Testing Guidelines for Respiratory Protection

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  1. Fit Testing Tab 8

  2. Purpose • Identify proper make/model/size • Verify that the user can: • wear comfortably without frequent adjusting • inspect and identify faulty parts • properly don • perform positive / negative user seal checks • maintain a sufficient seal through a series of representative movements

  3. Quantitative (QNFT) • Test Aerosol (TSI Portacount) • Conc Outside / Conc Inside = FF • Overall FF does not equal PF • new standard 100 & 500 • recommendations • 1000 & 2000 TSI • 2000 & 5000 Darrell Bevis • Controlled Negative Pressure (CNP)

  4. Qualitative (QLFT) • Subjective • Odor • Taste • Irritation • NIOSH warning

  5. Appendix A, General • Medical clearance prior to fit testing (e1) • Training on donning • Selection, most acceptable fit • + and - pressure (user seal) checks • Facial hair = NO TEST • Worn 5 minutes prior to test with all other safety equipment that could interfere with the fit

  6. Isoamyl Acetate Protocol • Odor Threshold Screening • 3 jars • odor free water • isoamyl acetate • separate room • must identify correct jar

  7. Isoamyl Acetate • Fit test protocol • clear drum liner • 2 foot frame • proper cartridges • copy of exercises • paper towel • atmosphere stabilization (2 min.) • test exercises

  8. Test exercises • Normal breathing • Deep breathing • Side to Side • Up and Down • Talking • Grimace (QNFT only) • Bending over • Normal breathing

  9. Isoamyl Amyl Fit test protocol (continued) • smell odor TEST OVER • leave immediately • reselect • re-screening (olfactory fatigue?) • repeat fit test • break seal if and when a successful test is achieved

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