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CHAPTER 5
Real-Time FitCheck Mode
This chapter covers the following items:
Real-Time FitCheck Mode™
Ambient Concentration Check
Real-Time Training
The Real-Time FitCheck Mode™ display is generally used for
respirator training and troubleshooting. It allows a test subject to
experiment with strap tension and other adjustments while watching
the direct effect these efforts have in real time.
The test subject learns how each adjustment affects the fit, and how
to achieve a fit that is comfortable and has minimum leakage.
This feature is intended for training. It should not be used
immediately before a fit test. Using the feature to help the test
subject don the respirator immediately before the official fit test
defeats one of the main purposes of fit testing: to prove that the
test subject knows how to don the respirator properly without help.
Use the real-time fit factor feature for training, practice and
troubleshooting failed fit tests only.
You can use the real-time fit factor display prior to a fit test as long
as you have the test subject remove the respirator and put it on
again (without the use of the real-time display or other assistance)
before the final test.
Before starting the Real-Time FitCheck Mode screen, have the test
subject put on the respirator and make sure it is properly attached to
the PortaCount Fit Tester.
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