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Fit testing errors can cause poorly fitting respirators to pass a fit test. These common mistakes and solutions are explained.
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Squeezing the nebulizer bulb incorrectly (using 2 fingers) results in an inadequate challenge aerosol concentration. Proper squeezing of the nebulizer bulb requires the bulb to be completely…
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Spraying the aerosol directly into the the filter reduces the challenge concentration. This error can allow poorly fitting respirators to pass the fit test, which can have consequences for the…
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This video shows how excessive tilting of nebulizers used for respirator fit testing fails to generate a sufficient aerosol challenge concentration. When this happens, poorly fitting respirators can…
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Clogging of nebulizers used during qualitative respirator fit testing (QLFT) are a common occurrence. This video provides explains how to check nebulizers for clogging prior to the start and end of…
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Learn how QualFit software simplifies and improves the accuracy of qualitative respirator fit tests
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Shows rapid movement of warm, moist, mixture of respiratory droplets of various size ranges traveling within a gas cloud up to 27 feet
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Qualitative Respirator Fit Testing with sweet or bitter taste solutions is conducted in two phases: Threshold Screening and Fit Testing. This video demonstrates the first phase (Threshold Screening)…
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Learn basic steps for using QualFit software to administer a qualitative respirator fit test for compliance with the OSHA respirator standard.
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This video provides comprehensive step-by-step guidelines to administer qualitative respirator fit testing using sweet or bitter agents. Procedures include threshold screening and administration of…
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