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As an occupational health & safety professional, or an industrial hygienist, you are continuously auditing, documenting and taking corrective or preventive actions.  With the increased awareness and importance of workers respiratory protection, and its move up the list to #2 on OSHA’s Top 10 most frequently cited workplace safety standards*, providing the most measurable and accurate respirator fit test with PortaCount® Respirator Fit Tester can help keep your workers protected, safe, healthy and strong – and to stay in compliance.

Construction worker
  • Respirators protect workers from breathable hazards in the workplace
  • Workers in dangerous environments deserve the very best protection possible from a respirator
  • Fit testing evaluates the seal between a respirator and the face, identifying gaps or leaks that put workers at risk​
  • Fit test results confirm if a mask will provide the right level of on-the-job protection needed


Together, we can help increase your staff’s safety and strengthen your respiratory protection program’s efficiency and productivity with the most trusted quantitative fit test instrument.  PortaCount® Respirator Fit Tester deliver safety by utilizing the most effective quantitative fit testing method available.


ACCURATE, FASTEST AND EASIEST FIT TESTING IN LESS THAN 2½ MINUTES**  using video animations to guide through the proper movements for each exercise

PortaCount All Mask Fit Test


FIT TEST ANY RESPIRATOR FROM N95 AND FFP FILTERING TO FULL-FACEPIECE RESPIRATORS with real-time feedback that guides to a better fit in less time

IMPACTFUL RESPIRATOR TRAINING WITH FITCHECK™ MODE allows to quickly identify the right respirator on how to wear respirators for optimal protection.

PortaCount Fit Tester
EFFORTLESS RECORDKEEPING AND PROGRAM SUPPORT WITH FITPRO ULTRA™ FIT TEST SOFTWARE improves efficiency and simplifies fit testing with measurable and accurate results in real-time.


  PortaCount Fit Tester  


Model 8048


* OSHA is the Occupational Safety & Health Administration of the United States Department of Labor. Learn more: OSHA’s Top 10 most frequently cited workplace safety standards.         

** With OSHA's modified CNC fit test protocol

Please comment with any questions or if you'd like to request a demo.

Full line of instrument solutions

Professionals call on TSI’s breath of products for monitoring worker area and environmental exposure to hazards and safety with accurate and reliable instruments to measure what’s important in your safety program. 

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