COVID-19 Fit Testing N95 Respirators for Healthcare Workers

COVID-19: Be Prepared In Less Time
Fit Test Any N95 Respirator in Under 2½ Minutes

TSI is committed to supporting the health and safety of workers and the general public during the global coronavirus outbreak.

The 2019 Coronavirus (COVID-19) is a public health emergency that healthcare facilities and workers are preparing for worldwide. Healthcare workers need confidence in their respiratory protection as the disease continues to spread. It is vital to properly prepare and train healthcare workers to respond to the threat.

One critical step in helping ensure healthcare worker safety is fit testing filtering facepieces, like N95s. According to the CDC, the effectiveness of N95 respirators to control exposures to airborne infectious diseases is highly dependent on proper fit and use.

Can You Be Confident in Your Qualitative Fit Test?

To fit test respirators, many healthcare facilities are using manual and time-consuming qualitative methods with Saccharin and Bitrex. With these qualitative methods, fit test administrators must rely on a person’s senses and self-reported feedback to determine if a mask is a proper fit. As qualitative fit testing is a manual process, there can be considerable variation in how fit tests are performed and the quality of those tests.

Quantitative respirator fit testing eliminates the guesswork and subjectivity associated with qualitative testing methods and provides users with objective data that accurately describes respirator fit.

PortaCount® Respirator Fit Tester

The PortaCount® Respirator Fit Tester delivers an objective fit test for any respirator, including all N95s, in less than 2½ minutes.


The PortaCount Respirator Fit Tester is the only quantitative instrument that works for any type or brand of respirator, including all N95 filtering facepieces. Simplify your fit test program with one consistent, objective, and automated testing experience across any respirator.


Using OSHA’s newly modified CNC protocols, the PortaCount Fit Tester provides the fastest fit test available. Fit tests can now be completed 65% faster than with qualitative methods. Instead of eight exercises, the new protocol only requires four. Your total fit test time is reduced from 7:00 minutes to 2:29. Other time-saving advantages with the PortaCount fit test over qualitative test methods include less prep/set up time and automatically recorded test data.


For a respirator to provide protection it must both fit and be worn correctly. The Portacount Fit Tester’s replace FitCheck® Mode gives users and staff the ability to see in real-time how respirator fit changes throughout donning and adjustment, allowing users to quickly evaluate respirator fit and efficiently match masks to even the hardest-to-fit staff. Real-time measurements also improve training by showing workers how to achieve the best fit with their respirator, reducing failed fit tests, and increasing staff safety.


With the PortaCount fit tester, animated guides lead staff through the proper movements for each test exercise. By leading respirator wearers through the exercises exactly as they should be completed, the instrument can better identify respirators that fit poorly. Fit test animations also free fit test administrators from the need to coach workers through fit tests ensuring consistency between tests and allowing the administrator time to multitask for increased productivity.