Cart: 0 items
View Cart Checkout

Product Categories

Quick Order System

Search In Progress

Processing your Request

Your personalized product is being created. This may take several moments.

Please do not hit the back button on your browser or refresh this page until this process is complete.

Enter your email address or that of a friend below to have this product sent directly to your inbox.

Recipient Address:

Sender Address:

Comments (Optional):

255 Character Limit

Security Code

Please enter the characters you see in Security Image above

Occupational Health Dynamics

Quantifit® Respirator Fit Testing System

Industrial Safety’s new Quantifit by OHD is the Gold Standard in Respirator Fit Testing.
As you will see below, the Quantifit makes fit testing less time consuming and easier while offering the unit substantially less that the PortaCount by TSI.
Quantitative respirator fit testing has been around for about 50 years. While there have been several ways to perform this fit test, there were never scientific studies to prove that these methods actually worked. These methods were simply “accepted” because this was the only way to do quantitative fit testing.
Things changed in 1992 when the idea of Controlled Negative Pressure (CNP) was implemented in a whole new approach to fit testing. This revolutionary way to perform a respirator fit test could be subjected to scientific scrutiny. The results? Unlike all other methods of fit testing, Controlled Negative Pressure was proven to quickly and accurately measure respirator leakage, which is the key to measuring respirator fit.
CNP technology was accepted by OSHA in 1998, and has quickly been adopted by industry to be the quickest and most accurate way to perform respirator fit testing— the gold standard in respirator fit testing.
While old technologies are sometimes hard to give up because, “we’ve just always done it that way,” the OHD Quantifit offers an impressive array of advantages that can dramatically improve your respirator program. Within the first ten seconds of testing, you will know whether the respirator user has a basic fit or not. And the OSHA accepted CNP Redon protocol takes as little as two to three minutes. If other quantitative fit test instruments measured accuracies of less than 40%, why put your employees at risk?
Controlled negative pressure has proven to be the fastest, most accurate, and most health protective fit test system available. The accepted Redon test protocol allows you to quickly assess respirator fit based on three mask donnings. Given the Quantifit’s speed and accuracy in measuring actual respirator leakage, why would you subject your employees to something that is less than the best?
Click on the link below to see the differences/advantages of the OHD Quantifit vs the PortaCount fit testing system. There are some very significant advantages when using the Quantifit system. And with these advantages, there are no down-sides or trade-offs. Plain and simple, the Quantifit is, in fact, the best instrument to use when performing a Quantitative Respirator Fit Test.

Features and Benefits
Proven Technology - CNP (Controlled Negative Pressure) technology
Fastest Fit Test Available – As little as 2-3 minutes
Most Health Protective – In studies where a known calibrated respirator leak is present, the OHD Quantifit measured 98% of known calibrated leak. The aerosol-based system measured only 37% of known calibrated leak1.
Easy to Use
Most Rigorous Test - The use of ambient air as a standard (non-varying), gaseous challenge agent provides a more rigorous test of mask fit than does an aerosol agent. If air leaks into a respirator, there is a chance that particles, vapors, or gas contaminants may leak in. When using aerosol-based systems, the test system can only see and measure some of the particles that might enter the respirator.
Direct Measurement of Leak
NIST Calibration
On-Board Software
On-Board Date Storage
Keyboard Interface
USB Computer Interface - The Quantifit can be directly connected to a computer to operate through FitTrack Software.
USB Memory Stick Interface - While data can be transferred to a PC via the USB connection, one may also transfer data via a USB memory stick.
USB HP Printer - This printer connection allows for tests to be printed directly from the Quantifit, without the need for a personal computer.

Quantifit vs PortaCount

Click here to see the major differences between the OHD Quantifit and the TSI PortaCount
Quantifit vs PortaCount
SKU Options Full Description 1 + Qty.
UOM:  Ea
Quantifit respirator testing system
$9,295.00 USD