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OSHA’s modified CNC protocols for PortaCount users


OSHA’s new modified CNC protocols for PortaCount users

Nov 13 2019 1:00PM (CST) Webex Webinar

OSHA recently announced changes to their Respiratory Protection Standard. The changes affect the Ambient Aerosol Condensation Nuclei Counter (CNC) Quantitative Fit Test (QNFT) Protocols in 29 CFR 1910.134, Appendix A.

The respirator fit testing process is now faster and more streamlined. The modified CNC protocols enable fewer, shorter fit test exercises. Instead of eight exercises, the new rules require four. Total fit test time is reduced from 7:15 minutes to 2:29.

TSI is pleased to invite you to a free webinar on the new protocols.


  • Date: November 13, 2019
  • Time: 1:00 PM - 2:00 PM (CST)


  • Understand the newly approved OSHA protocols and how to begin using them today
  • See how the new protocols dramatically speed up fit testing and make compliance easy
  • Get operational questions answered, including how to update your instrument

Who Should Attend

Anyone that owns a PortaCount Respirator Fit Tester Models (8030, 8038, 8040, 8048)