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TSI PortaCount 8040 and 8048

Available for hire

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The TSI 8040 and TSI 8048 PortaCount respirator fit testers are used for the testing of full & half face masks, SCBA's, and disposables (including P1 and P2 versions). Designed to be run from a tablet or PC (sale kits available with and without a tablet) these fit testers provide a consistent and objective testing experience across all respirator types. The easy to use software includes a FitCheck mode that helps users achieve a better fit for respirator wearers more quickly and a video animation guide that assists staff through the proper movements for each test exercise. 

** Get a free Microsoft Surface Go tablet, WiFi USB adapter and USB cable when ordering a PortaCount 8040 or 8048 respirator fit tester before 31st December 2019 **

Product Features

  • 4 model types
  • Range of accessories
  • Document downloads
  • Instrument video

Instrument product options

1. Select a model (4 available)

Continue to select accessories

2. Select accessories

3. Select a calibration

4. Request a quote



Available in two versions; the TSI 8040 product is designed for all full and half face filtering masks as well as P3 disposable types and the 8048 covers these along with the P2 and P1 disposable types.


  • Fit test ANY tight-fitting respirator including N95, P2 and P1 disposables (8048 model only)
  • Fast fit testing time 
  • PC or tablet operation
  • WiFi capabilities
  • Measures fit factors greater than 10,000
  • Switch between different respirator types in under a minute
  • Automated fit testing with FitPro Ultra software
  • Real-time FitCheck mode to train new users and troubleshoot failed fit tests
  • Interactive troubleshooting guide
  • HSE compliant

Tablet bundle kits:

  • Includes Microsoft Surface Go tablet, WiFi USB adapter, and USB cable, in addition to standard accessories kit. Features touchscreen tablet for easier, more efficient, more productive testing and the wireless connectivity gives more freedom to multitask and assist test subjects.

Optional accessories 

TSI offers a comprehensive range of accessories including mask sample adapters.  See separate data sheet for details.

IMPORTANT NOTE - Instrument Hire Models

Instrument Hire models are available on a 3 day or weekly rental period, and is supplied with x25 No. N95 face piece adapters, 40mm adapter kit (TSI Part No. 8025-CEN - Fits most face pieces that use standard 40 mm DIN threaded filt) as well as the 3M adapter kit (TSI Part No. 8025-16 - For 3M masks with removable filters with a bayonet connection). Please note that hire kits are not supplied with a tablet. For additional information or alternative face mask types please call the Hire team on 01344 459314 for availability.


Fit factor range     1 to greater than 10,000        8048 model only : 1 to 200 for N95 type masks

Typical fit factor accuracy     ±10 % of reading

Respirator facepieces that can be fit tested

Model 8040 : Full-face elastomeric, half-face elastomeric, NIOSH 95, 99 &100 series, and EN series P3 filtering facepieces

Model 8048 : Full-face elastomeric, half-face elastomeric, NIOSH 95, 99 & 100 series, and EN series P1, P2 and P3 filtering facepiece

Fit factor measurement      Direct measurement of fit factor (Cout/Cin) - Mask leakage is measured simultaneously while test subject moves and breathes

Dimensions (HWD)     12 cm x 27 cm x 24 cm

Weight     8040 - unit only 2.7 kg with case 6.5 kg   8048 - unit only 3.2 kg with case 6.9 kg

Power     Autosensing 100 to 250 VAC, 50 to 60 Hz

Flow rate     Sample 350 cm3/min. Total 1000 cm3/min (nominal)

Pass  /Fail setting     User selectable: 0 to 10,000

Factory recalibration interval      One year

Communications     WiFi, USB-C and USB-A

Warranty     Two years on workmanship and materials

Microsoft Surface Go tablet     Supplied with bundle kits only; 64 GB storage, Intel Pentium 4415Y processor, 4 GB RAM, 10 " touchscreen display, WiFi, Bluetooth and Windows 10 

Minimum PC hardware requirements for FitPro Ultra fit test software     Microsoft Windows 7 Windows 8 or Windows 10 (32 and 64 bit) operating system.  Microsoft Net version 4, internet conection, 1280 x 800 monitor screen resolution, 500 MB free space on drive, x1 spare USB port.

Minimum tablet requirements     Windows 10 operating system with USB port (for initial setup)



TSI 8026 particle generator user manual

  • Technical Document
  • PDF file
  • 571 KB

TSI fit test adapters data sheet

  • Technical Document
  • PDF file
  • 89 KB

TSI PortaCount 8040 and 8048 quick start guide

  • Technical Document
  • PDF file
  • 120 KB

TSI PortaCount 8040 and 8048 user manual

  • Technical Document
  • PDF file
  • 2 MB

TSI PortaCount 8040 BSRIA data sheet

  • Technical Document
  • PDF file
  • 1 MB

TSI PortaCount 8048 BSRIA data sheet

  • Technical Document
  • PDF file
  • 1 MB

Demonstration video

Overview of the TSI PortaCount real-time tool which is ideal for training new users of face masks
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