Additional Test Methods

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This page shows the standard test procedures for PAPRs and CCERs not listed in Appendix B. The assessment fee assessed is $500/day plus the actual cost of non-NIOSH staff (medical) and test participants.

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Powered air-purifying respirator (PAPR) tests

Apply to PAPR HE® and PAPR100 classes

NPPTL-APR-STP-0009-0010 - Determination of Respirator Fit, Quantitatively Using Corn Oil Aerosol, for Powered Air-Purifying Respirators with Loose- or Tight-Fitting Respiratory Inlet Coverings, Standard Testing Procedure (Replacing CVB-APR-STP-0009 and -0010)

Apply to PAPR100 class

  • CVB-APR-STP-0080 - Determination of Particulate Filter Efficiency Level Against Liquid Particulates
  • CVB-APR-STP-0081 - Determination of Particulate Filter Efficiency Level Against Solid Particulates
  • CVB-APR-STP-0085 - Determination of Low Flow Warning Device Sound Level
  • CVB-APR-STP-0086 - Determination of Low Flow Warning Device Activation for Breath Assist Type
  • CVB-APR-STP-0087 - Determination of Low Flow Warning Device Visibility
  • CVB-APR-STP-0088 - Determination of Low Flow Warning Device Activation
  • CVB-APR-STP-0089- Determination of Communication Performance Test For Speech Conveyance And Intelligibility

Closed-circuit escape respirator (CCER) tests

Content Source
National Institute for Occupational Safety and Health
About This Page
Published: April 23, 2025
Updated: October 28, 2026

This page was last updated on this date. Updates may include minor edits, image changes, or other modifications to page content.

Reviewed: March 4, 2025

The information on this page was last reviewed by subject matter experts to ensure accuracy.

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