TSI 8048 PortaCount Respirator Fit Tester



The only commercially available instrument in the world that can quantitatively fit test all tight fitting respirator face masks, including all N95, P1, P2 and P3 filtering face piece respirators.

The new TSI 8048 PortaCount Respirator Fit Tester is a quantitative respirator fit tester. It features intelligent touchscreen solutions* that support respiratory protection programs from training through compliance.

Only the 8048 provides one consistent and objective testing experience across all respirator types, including all N95 filtering face pieces using N95-Companion™ technology. New features like FitCheck™ Mode and animated fit test steps now help users achieve a better fit for respirator wearers 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.


• Included with rental: TSI 8026 Particle Generator

SKU: TSI8048 Tags: , , , , ,



  • Compatible with new Modified CNC Protocols
  • OSHA, CSA, HSE, INRS and ANSI compliant for all tight-fitting respirators, including series 95, 99, 100, FFP1, FFP2 and FFP3 filtering facepiece respirators
  • Built-in N95 Companion™ technology
  • 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
  • The 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 100/99/95/P1/P2/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

N95 Respirators

N95 Respirators – Respirator fit testing with an N95 mask probe kit

N95 Respirators – How to simplify the fit testing process for N95 filtering facepieces

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



TSI 8026 Particle Generator

TSI 8016 Isopropyl Alcohol, 30ml x 16 Bottles

TSI 803011 Salt Tablets

TSI 8033 Alcohol Wicks for PortaCount

TSI 800197 Twin-Tube Sampling Hose

TSI 8025-N95R Fit Test Probe Refill Kit for Disposable Facepieces


TSI 1303740 Computer USB Cable

TSI 8032 Alcohol Cartridge and Fill Capsule for PortaCount

TSI 8032-CT Alcohol Cartridge for PortaCount

TSI 8032-FC Alcohol Fill Capsule for PortaCount

TSI 8032-SC Storage Cap for PortaCount

TSI 8034 AC Adaptor for PortaCount

TSI 803X-ZFLTR Filter, Zero Check, HEPA for PortaCount

TSI 803X-CRDFRM Removeable Punch-Out Card Forms for PortaCount


TSI 804007 Probe Insertion Tool Set

TSI 8017 Sampling Hose Kit

TSI 8025 Fit Test Adapter Series

TSI 8025-N95 Fit Test Probe Kit

TSI 8017 Sampling Hose Kit