Dynatech Nevada FitTester3000

Introducing FitTester 3000, a revolutionary new system that's been accepted by OSHA for use in all types of quantitative fit test programs. With a patented fit testing technique known as controlled negative pressure, FitTester 3000 offers test results that are more reliable than those obtained with any other method currently available, including qualitative methods and particle counting devices. You'll also appreciate easy-to-conduct tests, speedy fit factor calculations, preprogrammed exercise and test protocols that meet OSHA requirements, and a price that's extreemly competitive.

 No more messy challenge agents and alcohol.

With FitTester 3000, there's no irritant smoke, banana oil, or other challenge agents to spray, breathe, mix, fill, or spill. There are no human factors that could influence a test one way or the other. Instead, FitTester 3000 replaces these outdated, qualitative methods with the convenience of controlled negative pressure. Better still, FitTester 3000 has even improved on quantitative methods. The currently available particle counting devices use an inconvenient alcohol cartridge that has to be removed and refilled when the alcohol level runs low. With FitTester 3000, there are no cartridge changes, maintenance, or worry about dirty optics. That means you can conduct an unlimited number of tests without stopping for anything. The FitTester 3000 is the ONLY device that can check its calibration in the field! This give you an extra measure of confidence as you protect your employees. Remember, FitTester 3000 puts the pressure on your respirator not on you!

The secret behind Controlled Negative Pressure (CNP).

While the concept is simple, no other fit test system can offer the precision and accuracy offered by FitTester 3000. In fact, comparison studies have shown that the controlled negative pressure (CNP) technique provides a more accurate measure of respirator fit than aerosol-based devices. The CNP system is the only fit test technology on the market to offer overwhelming scientific proof of such accuracy. The FitTester 3000's accuracy is calibrated to a traceable NIST standard. Competitive products cannot measure up to the accuracy provided by the FitTester 3000 PERIOD!

CNP technology is different because it allows you to take a direct measurement of leakage through the face-to-facepiece seal. To do so, the respirator inlets are capped with test adapters , and the inhalation valves are removed. With the test subject holding his or her breath for about 10 seconds, FitTester 3000 then establishes and maintains a slight vacuum, or controlled negative pressure, inside the mask. Since the respirator inlets are sealed, all sources of leakage into the mask are through the face-to-facepiece seal. The volume of air drawn out of the mask is directly proportional to the leak rate into the mask. its that easy.

How CNP technology compares to the competition.

To help you better understand the advantages of using CNP technology, let's take a look at the shortcomings of the most-used quantitative fit test method, particle counting. To determine respirator fit, a particle counting device alternately samples the aerosol concentration both inside a mask and in the ambient air surrounding the mask. The particles in these samples are then coated with alcohol to make them detectable by a light beam counting device. The particle counting device estimates a fit factor by dividing the average count from a one-minute in-mask sample by the average count from a 10-second ambient air sample.