Fit Testing

TSI PORTACOUNT® Plus
PORTACOUNT® Plus is the easy way to reliably fit test tight-fitting respirators. The PORTACOUNT uses a quantitative fit testing method to eliminate the guesswork found with other testing methods and reduce the amount of work associated with fit testing in general. Plus, with convenient FitPlus™ quantitative fit testing software that comes with each instrument, you can streamline the fit testing process even further by letting your computer do the work.

The PORTACOUNT makes a direct measurement of respirator fit factors. There are no error-inducing assumptions made to calculate "equivalent" fit factors. The measurement is made while the person simultaneously performs dynamic moving and/or breathing exercises designed to stress the respirator seal in ways that simulate anticipated workplace activity.

The N95-Companion™ works with the PORTACOUNT Plus to provide you with a complete solution to all of your fit testing needs. Use the PORTACOUNT alone for masks equipped with Series-99 and Series-100 filters. Simply add the N95 Companion to fit test masks with Series-95 filters, including the popular N95 filtering facepiece disposables.