Squeezing the nebulizer bulb incorrectly (using 2 fingers) results in an inadequate challenge aerosol concentration. Proper squeezing of the nebulizer bulb requires the…
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…
This video shows how excessive tilting of nebulizers used for respirator fit testing fails to generate a sufficient aerosol challenge concentration. When this happens,…
Clogging of nebulizers used during qualitative respirator fit testing (QLFT) are a common occurrence. This video provides explains how to check nebulizers for clogging…
Qualitative Respirator Fit Testing with sweet or bitter taste solutions is conducted in two phases: Threshold Screening and Fit Testing. This video demonstrates the…
This video provides comprehensive step-by-step guidelines to administer qualitative respirator fit testing using sweet or bitter agents. Procedures include threshold…