Page:NIOSH DM DFM respirator evaluation draft.pdf/33

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WORKING DRAFT 9.15.92—Performance Evaluation of DM and DFM Filter Respirators
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Table L—Process Elements for Evaluating Respirator Performance and Determining APFs.

Process Element
1—Select respirators to be tested.
2—Select test environment.
3—Select test subjects.
4—(Optional) Perform fit-test screening (QLFT or QNFT) that is supposed to reject those subjects unable to obtain an adequate fit.
5—Measure respirator performance under test conditions.
6—Analyze respirator-leakage data and determine APFs for each respirator class.
Centers for Disease Control
Centers for Disease Control
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