Make it easy to measure hearing protection needs.
E-A-Rfit™ System uses a proven technique known as Field Microphone in Real Ear or F-MIRE to measure how well the hearing protector is working for each employee. The noise reduction provided by the hearing protector is measured directly and objectively, without the need for the employee to listen or respond to the test signals.
Now, with the 3M™ E-A-Rfit™ Dual-Ear Validation System, it takes just seconds to measure the noise reduction at seven different frequencies for BOTH ears at the same time. Once the measurement is completed, the software calculates and displays an overall performance rating for each employee, known as the Personal Attenuation Rating or PAR.
In less than 5 seconds, the system generates a personal attenuation rating (PAR) that indicates a worker's noise reduction levels for a given fitting Advantage: Reflects an individual's fitting methods and indicates if additional training is necessary in hearing protection fit testing.
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