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Demand More From Your Respiratory Protection Program

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 position as #3 on OSHA’s most recent 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 and healthy – and to stay in compliance.

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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

Connect with us if you have any questions or would 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. 

Noise & Sound

Sound & Noise Exposure Monitoring

Exposure to excessive noise elevates stress and poses a substantial risk to worker safety.

Heat Stress

Heat Stress Monitoring

TSI Quest instruments can help you protect your workers from exposure to heat stress.

Dust Monitoring

Aerosol & Dust Monitoring

Measuring risk to workers by monitoring the worker breathing zone.


Ventilation Testing & Balancing

Properly adjusted systems can make a building more energy-efficient and cost-effective.


Indoor Air Quality

Tools to measure temperature, humidity, outdoor air calculations, CO, CO2, and particles.


Fugitive Emissions Monitoring

Real-time data is often required to prove fugitive emissions levels comply with regulations.