Because better fit saves lives
Air, Not Aerosol. Not all fit tests are the same. Not all testing methods produce the same results. Read here why the Quantifit CNP method produces more accurate tests, faster.Read the Article →
CNP Test: Faster, more accurate and more dependable.
Complete the OSHA-approved Controlled Negative Pressure (CNP) Redon protocol in as little as three minutes. You’ll know if a user has a basic fit in 10 seconds. It’s that easy. Quantifit uses no consumables and is not environmentally dependent. In fact, it uses air as the challenge agent. Read on for a full list of Quantifit’s features and benefits.
"The Chicago Fire Deparment 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."
"The best technology that I have found is the OHD Fit Tester. This method uses controlled negative pressure to actually quantify the size of the leak (if any) in the mask. Using air pressure as the challenge agent in fit testing gives the most accurate results and there are published scientific studies to prove it. Other quantitative methods may provide the user with a false positive or a PASS on the fit test. There is minimal chance for a false PASS result on the OHD fit tester because the air pressure inside the mask is what is being quantified. If there is a leak, it will be detected. Leaks matter even the small ones! The OHD Fit tester does not lie! Many Fire Departments have been using this technology for years."
“We are extremely impressed with the machines. They have cut our fit test time considerably! Very pleased!”
“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.”
“All, I wanted to say how impressed I am with your Quantifit. I have used your competitor’s product before and in comparison your system is so simple. I also was impressed that I could not get it to pass a fit test with my beard on, whereas I could do that with other quantitative fit testers. Excellent job.”
More durable, more portable.
Quantifit provides the most accurate and verifiable fit test for respirators on the market, ensuring that your masks fit properly. We designed Quantifit for durability and portability. It is now more streamlined and lighter than previous models and includes a carrying case, keyboard, onboard memory, and PC connections.
How it Works
One tube pulls a negative pressure, and to keep the pressure constant, it has to pull out any additional air that leaks into the mask. This measurement directly tells us how much air has leaked into the mask, and that leak amount is converted to a fit factor.
Quantifit vs. Ambient Aerosol Methods
Benefits of the OHD Quantifit using CNP technology versus traditional ambient aerosol methods for fit testing.
Fit Testing Demo
This video highlights the key benefits of utilizing the OHD Quantifit and our patented Controlled Negative Pressure (CNP) Technology to perform a three minute OSHA, NFPA and ISO approved Fit Test.Request a Demo →