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OHD exists to provide the FACTS.

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When it comes to respiratory protection, there is too much on the line to not be fully informed. At OHD, your protection is our priority. All fit testing technologies are not made equal. Get the facts. The Quantifit is still the fastest and always the most accurate. 
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Facts in Fit Testing

View Comparison Chart

We want to make it easy for you when researching the different forms of quantitative fit testing. That is why we made this easy to follow Comparison Chart for you to view!

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Benefits of the Quantifit

View CNP Technology Advantages

We know it can be hard deciphering between different mask fit tester technologies! We've outlined the primary advantages in an animated video for your viewing pleasure - enjoy!

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Back to the Basics

Download the Fit Test Glossary

New to fit testing? Lets start back at the basics with an easy to follow terminology guide that covers everything you need to know about mask fit testing!
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Transparency is key in the fit testing industry. We have fit test specialists standing by who are dedicated to one thing - answering questions from people like you. Let us know how we can help!
Speak To A Fit Test Specialist

What respiratory professionals are saying:

The OHD Quantifit provides us with confidence that our masks fit properly and will help to protect Philadelphia Police officers in the line of duty. We are able to efficiently and quickly fit test our personnel, with the most accurate fit test available. This has made the Quantifit a great addition to our respiratory protection program.

Matthew Fleming Counter Terrorism Operations

We are extremely impressed with the machines. They have cut our fit test time considerably! Very pleased!

Leslie Motheral Firefighter Instructor

The Chicago Fire Department implemented the OHD Quantifit for NFPA compliant SCBA fit testing. The Quantifit has increased our speed, accuracy, and ability to manage reports using OHD’s FitTrack Gold software.

Robert Anthony Former Chief
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