TSI 8040 PortaCount Respirator Fit Tester


The new TSI 8040 PortaCount Respirator Fit Tester is a  is a quantitative respirator fit tester. It features intelligent touchscreen solutions* that support respiratory protection programs from training through compliance.


FitCheck Mode™ shows in real time how respirator fit changes throughout donning and adjustment, helping users select the right mask and identify the right fit more quickly. Video animations guide staff through the proper movements for each test exercise, providing a consistent testing experience and freeing administrators to multitask.


*Screen not included, must be purchased separately.

SKU: TSI8040 Tags: , , , ,


What our customers say:

“We have been purchasing PortaCounts and consumables from Kenelec Scientific since 2013, and have appreciated their ongoing support through COVID-19 despite the many unique challenges the industry has faced. I would only trust Kenelec Scientific for purchasing and calibrating our fleet of PortaCounts, and look forward to their ongoing contribution to quantitative face fit testing in Australia.”

Sebastian Rasche, Managing Director, Pro Safety and Training | RESP-FIT Approved Training Provider


  • Compatible with new Modified CNC Protocols
  • OSHA, CSA, HSE, INRS and ANSI compliant for all tight-fitting respirators, including series 99, 100 and FFP3 filtering facepiece respirators
  • Real-Time FitCheck Mode™ shows respirator fit in real-time for improved mask selection and training
  • Animated fit test steps guide users though the proper movements for each exercise
  • Group Fit Test Mode allows administrators to control up to four instruments from a single control screen
  • FitPro Ultra™ Fit Test Software automates training, testing and recordkeeping
  • New app-like interface is easy to use and allows users to start a fit test quickly, in fewer steps
  • Measures fit factors greater than 10,000


  • Quantitative respirator fit testing (QNFT)
  • Half-mask fit testing
  • Full-face fit testing
  • Disposable filtering-facepiece fit testing for Series 100/99/P3 masks
  • SCBA fit testing
  • Gas mask fit testing
  • PAPR fit testing

Spec Sheets



Quantitative Respirator Fit Testing – What is Respirator Fit Testing?

Quick Tips

One Quantitative Respirator Fit Test for Every Kind of Respirator

FitCheck® Mode – Reduce Time and Respirator Fit Testing Failures

Safer, Smarter Respirator Fit Testing with Animated Displays

Setup & Operation

PortaCount Daily Check – How to perform Daily Checks for fit testing

PortaCount Set Up – First steps for respirator fit testing with PortaCount

PortaCount Real-Time – Using Real-Time FitCheck® Mode

Demo – PortaCount Respirator Fit Tester running OSHA’s Modified CNC Protocols

Mask Preparation

PortaPunch™ Probe Insertion Tool – Proper setup and use

Mask Prep – How to prepare a half or full-face respirator for fit testing

SCBA Respirators

SCBA Kits – How to conduct respirator fit testing with an SCBA respirator

FitPro™ Ultra Software

FitPro™ Ultra Fit Test Software for using PortaCount Respirator Fit Testers



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