JOSHUA PILGREEN
SAFETY CONSULTANT
Respirator Fit Testers: A Guide to Choosing the Right Fit for Your Workplace Safety
When it comes to workplace safety, ensuring the proper fit of respirators is essential. A Respirator Fit Tester is an invaluable tool that helps guarantee the respirators workers wear provide the necessary protection against hazardous environments. In this guide, we’ll explore three top models: the QuantiFit 2™, AeroFit™, and PortaCount®. Understanding the features and benefits of each will help you make an informed decision to meet your workplace’s unique needs.
Want to learn more about the OSHA requirements for respirator fit testing? Click Here.
1. QuantiFit 2™: Quick and Innovative

The QuantiFit 2™ by Occupational Health Dynamics is a leading choice for respirator fit testing, known for its speed and accuracy. This fit tester is designed for ease of use and efficiency, making it ideal for both small and large-scale operations.
Key Features of QuantiFit 2™:
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Highly Accurate Fit Testing: Utilizing CNP technology, the QuantiFit 2™ offers superior precision, ensuring each test provides reliable results.
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Portability and Durability: Built with mobility in mind, the QuantiFit 2™ is lightweight and rugged, making it a practical option for field testing. Has a battery option and can be used in any environment. Also comes with a lifetime powertrain warranty.
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Quick Setup and Results: Designed for efficiency, it delivers fast fit testing results, minimizing downtime for your team.
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No Particle Generation: The QuantiFit 2™ uses a patented method that eliminates the need for particle generation. It uses air as the challenge agent which means no need for consumables.
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Standalone Capability: The QuantiFit 2™ has unlimited onboard storage capability.
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Automated Emails: The Logic Cloud software will allow managers to setup automated emails so you do not have to send constant reminders to your employees.
With these benefits, the QuantiFit 2™ is a great option for industries looking to ensure respiratory protection without the hassle of complex setup.
Cons:
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Does not test disposables respirators like N95's.
2. AeroFit™: The Latest in Fit Testing Technology

The AeroFit™ by Occupational Health Dynamics is another popular choice for respirator fit testing. It is the latest release in the fit testing world. It has the same user interface as the QuantiFit 2™. Its a great choice for companies needing to test disposable respirators like N95's.
Key Features of AeroFit:
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Test All Respirators: Utilizing CNC technology, the AeroFit™ can test any rubber-elastic seal respirator and any type of disposable mask.
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Interactive Test Experience: Step-by-step animations and instructions guide users through the fit test process.
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Preloaded Respirator Lists: Auto-pair respirators with the correct fit factor and protocol.
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Standalone Testing Capability: Like the QuantiFit 2™, the AeroFit™ has unlimited onboard data storage with no tablet or computer required
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Automated Emails: The Logic Cloud software will allow managers to setup automated emails so you do not have to send constant reminders to your employees.
The AeroFit™ is a great option for any department that needs to test a wide range of respirators including N95's.
Cons:
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Probing of respirator is required
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Requires alcohol
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Requires a minimum amount of particles in the air
3. PortaCount® : A Well-Known Option for Fit Testing
The PortaCount® by TSI is another machine that can be utilized for respirator fit testing. The PortaCount® has been around a long time and also uses CNC technology.
Key Features of PortaCount®:
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Test All Respirators: Utilizing CNC technology, the PortaCount® can test any rubber-elastic seal respirator and any type of disposable mask.
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Well Known Brand: TSI introduced the first PortaCount® Respirator Fit Tester in 1991.
Cons:
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Probing of respirator is required
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Requires alcohol
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Requires a minimum amount of particles in the air
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Price
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Requires tablet or computer
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No preloaded respirators