Fit Testing


		Fit-Testing Essential Safety Services offers for rental and quantitative fit-testing, the OHD FitTester 3000. The FitTester 3000 is a highly specialized instrument which utilizes the Scientifically proven and patented "CNP" (Controlled Negative Pressure) Technology to measure respirator leakage directly. The FitTester 3000 is now written into the Federal Regulations governing fit testing [29 CFR 1910.134]. With a patented fit testing technique known as controlled negative pressure, OHD FitTester 3000 offers test results that are more reliable than those obtained with any other method of fit testing 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 standards. The FitTester 3000 directly measures facepiece leakage instead of estimating leakage by trying to count fractions of a particle/cc in a mask environment that is strongly affected by in-mask sampling biases. FitTester measured known respirator leaks with less than 5% error, while aerosol-based measurements of those same leaks had errors up to 80%. The use of ambient air as a standard (non-varying), gaseous challenge agent that provides a more rigorous test of mask fit than does an aerosol agent. If air can leak into a respirator, a particle or vapor might leak into the mask; if air can not leak into the mask, a particle or vapor can not leak into the mask. With aerosol-based systems, you can’t be sure what can and can’t leak into the respirator in the actual workplace. The elimination of aerosol lung deposition losses and/or lung- generated particle contribution to test aerosol count.

		• The FitTester has the ability to precisely set and control the test challenge pressure, which allows respirator fit to be tested at inspiratory pressures. A variety of challenge pressures can be used to simulate a variety of work and breathing rates ranging from rest to maximal exertion. • There are no messy alcohol wicks which need to be periodically changed. There are no internal optics which require cleaning once contaminatgd. Also, condensation droplets inside the sampling tubing cannot effect the accuracy of its measurements. • The FitTester 3000 is extremely easy to set up and use. There is no instrument warm- up period to worry about, and the on-screen prompting of the instrument guides the user effortlessly through the QNFT test protocol. If you have a poor mask fit, you know it in a matter of seconds. • The testing environment is much less critical, and results (including the ability to actually get a result) are not dependent upon testing location. This is because the FitTester 3000 measures leakage directly by using CNP technology and does not rely upon minimum threshold level of ambient air particle concentration for proper operation. Essential Safety Services Introduces the OHD



		Contact Essential Safety Services for the new OHD Quantifit Essential Safety Services offers the OHD Quantifit™ for industrial and firefighting quantitative fit-testing. Using the same proven technology, the Quantifit™ takes the accuracy, speed, and reliability of the OHD FitTester 3000 to a new level. OHD couldn’t make it more accurate than it already was, but we were able to move it forward with state-of-the-art technological advances. The OHD Quantifit avoids all of the messy, time-consuming tasks of condensation nuclei competitive products as it truly measures the leakage in a facepiece. The OHD Quantifit™ from Essential Safety Services includes: • 1-3 minute respirator fit testing • On-board data storage (more than 1000 tests) • SB keyboard and printer connection • So easy to use that the subject can test himself • USB thumb-drive storage and data transfer • Increased automation during testing • USB Computer interface • Firmware upgrades and improvements may be downloaded from the internet • Updated easy-to-read display • Smaller and lighter instrument • Quieter operation • Sleek new look with improved on-board software • Optical knob for easier menu navigation • World-wide universal power connection • More audio feedback during testing With an updated 2007 standard, the National Fire Protection Association (NFPA) requires that tight-fitting facepieces now be tested with a Quantitative Fit Test (QNFT) instead of the previously-approved Qualitative Fit Test (QLFT). OHD has partnered with many fire departments across the U.S. as firefighters recognize the speed, accuracy, and reliability of the OHD Quantifit as it conducts quantitative fit tests. Now that the use of a QNFT instrument is mandatory, we hope to increase awareness as well as provide the most accurate test on the market.

		Below is a list of some of the many improvements seen on the Quantifit™: 1-3 minute respirator fit testing
			With the OSHA-approved 5-step Redon Protocol, which can only be used with Controlled Negative Pressure technology (The FitTester 3000 and the Quantifit™), a typical fit test can be completed in less than three minutes. And with the improved automation of the Quantifit, it's actually quicker and easier than ever!
		On-board data storage (more than 1000 tests)
			The Quantifit™ can store more than 1000 tests so that the typical user can store a year's worth of tests or more. The data can be downloaded to FitTrack software or backed up to a memory stick as a text file for safe keeping.
		USB keyboard and printer connection
			The Quantifit™ comes with a USB keyboard for data entry (employee ID and name, and all mask information). Add the optional printer, and the Quantifit™ system is all you need -- no personal computer necessary
		So easy to use that the subject can test himself
			The Quantifit™ is more automated, requiring less interaction with the user. And with clearer instructions and simpler operation, many users will be able to do a self-test with speed and ease.
		USB thumb-drive storage and data transfer
			With the ability to connect a thumb drive or memory stick, data can be backed up or transferred to a computer with ease.
		Increased automation during testing
			The Quantifit™ automatically saves the test step when the minimum criteria is met. Better instructional screens also make the Quantifit™ easier to use and faster than ever.
		USB Computer interface
			Gone are the days of serial interface, now with USB connections, this aate the Quantifit™ through the included FitTrack software, or it can be used for data transfer into FitTrack.
		Firmware upgrades and improvements may be downloaded from the internet
			Whenever changes and improvements are made to the Quantifit™, no need to send it in for an upgrade. The upgrades are easily downloaded and upgraded with a few simple mouse clicks.
		Updated easy-to-read display
			With a backlit display set at an optimum angle, the display is easy to read in any lighting condition. Glare from above lighting is no longer a problem.
		Smaller and lighter instrument
			Not only is the Quantifit™ a more modern-looking instrument, but it is also smaller and lighter. And with the build-in handle, it's easy to move in a jiffy.
		Quieter operation
			Because of technological advances in microprocessing, you won't even know the Quantifit™ is running because it is so quiet.
		Optical knob for easier menu navigation
			The optical knob allows the user to run through the menus with ease. For long lists to wade through, the faster the knob is turned, it incrementally moves forward faster. The knob also acts as an "enter" key, so all you need is two fingers to operate the Quantifit™!
		World-wide universal power connection
			The power cord has its own transformer. To work with different voltages, the user only needs to change the portion that connects to an electrical outlet.
		More audio feedback during testing
			particular test has failed, or if the user is performing an incorrect action.