Direct Measurement of Leak
The Fit Tester 3000 directly measures facepiece leakage instead
of estimating leakage by trying to count fractions of a particle/cc
in a mask environment that is strongly affected by in-mask sampling
biases.
More Rigorous Test
The use of ambient air as a standard (non-varying), gaseous challenge
agent that provides a more rigorous test of mask fit than does an
aerosol agent. If air can leak into a respirator, a particle or
vapor might leak into the mask; if air cannot leak into the mask,
a particle or vapor cannot leak into the mask. With aerosol-based
systems, you can’t be sure what can and can’t leak into
the respirator in the actual workplace.
Enhanced Fit Test Precision
Our CNP-based transducer has a ±3% flow measurement capability.
Its increasing level of precision and repeatability, coupled with
its independence from inmask sampling biases, make the CNP method
capable of selecting the best fitting respirator for each individual
worker from a variety of different respirator brands and sizes.
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Ability to be NIST Calibrated
The ability to calibrate the CNP system with generally available
primary calibration systems assures a higher standard of test results
(NIST traceable standard).
Easier to Use
The Fit Tester 3000 is extremely easy to set up and use. There
is no instrument warm-up period to worry about, and the on-screen
prompting of the instrument guides the user effortlessly through
the QNFT test protocol. If you have a poor mask fit, you know it
in a matter of seconds. |
