The Quantitative Face Fit Testing is a test done by a qualified Fit 2 Fit Tester.
Quantitative (Portacount, APC) fit testing can be used to fit test all types of tight-fitting masks including disposable, half and full-face masks. Quantitative tests give an objective assessment of facial fit and provide a direct numerical result called a Fit Factor.
We use the testing method of the Ambient Particle Counting method (the TSI PortaCount). The PortaCount measures the ratio of particles inside and outside the facepiece and provides a numerical result called a Fit Factor.
FitPro Ultra software provides a seamless interface with the Portacount and manages fit test reports, retest frequency as well as providing diagnostics of fit test failures.
As in all other methods, the wearer should perform a series of exercises during the fit testing procedure (see INDG 479 Protocols for more details on test exercises and pass levels).
Once the delegate has completed the test the tester will give the diagnostics and results.
Delegates must be clean shaven and not eaten or smoked for a minimum of 30 minutes prior to being face tested.