The CNP Advantage

OHD FitTester 3000 Parts List

Pop Quiz

Frequently Asked Questions

Calibration

Quick Start Guide

Technical Q & A

Resources and Articles

Recently Published Articles:

A Faster, More Rigorous Protocol for Fit Testing Emergency Response Respirators

Effect of Test Exercises and Mask Donning on Measured Respirator Fit

Articles from John Hale's Respiratory Update Newsletter:

#1 Quantitative Respirator Fit Testing With Controlled Negative Pressure

#2 If you Can't Measure Respirator Leakage, Can you Measure Respirator Fit?

#3 Those Fantastic Fit Factors

#4 Relationship Between Fit Factors, Penetration, and Mask Leakage

#5 CNP Fit Testing Under OSHA's Updated Respiratory Protection Standard

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