3M E-A-Rfit Validation System

3M E-A-Rfit Validation System

The E-A-Rfit Validation System is an objective, quantitative hearing protector fit-test system. This system assists in achieving optimal fit through hearing protector selection and employee training. Workers fit earplugs themselves. Once a subject is fitted, it takes less than 10 seconds per ear to test 7 standard frequencies. The unique dual-element microphone measures the noise reduction of each earplug as worn by the worker. The patented system and proprietery algorithms quickly analyze real-ear data to provide a personal attenuation rating (PAR) and fit variability. Compare ratings across hearing protectors and fittings to determine best fit.

This in-the-ear testing procedure differs from many other systems on the market by providing qualitative data that does not rely on subject response. This system will allow you to establish baseline values for new workers, identify workers receiving inadequate protection and validate high protection levels required by workers in high noise areas. It will also assist you in identifying employees in need of further fit training as well as the most appropriate hearing protectors to help minimize over/under protection.

The E-A-Rfit Validation System includes:

  • speaker and stand
  • dual-element microphones
  • USB cable
  • power cable
  • roll model
  • trial quantity of probed test plugs
  • software (via online download)
  • free online training and user support


Upcoming Events
23 Oct 2017

Ladder Safety Training

Calgary, AB
23 Oct 2017

WHMIS (Workplace Hazardous Materials Information System) 2015

Burnaby, BC
23 Oct 2017

Fall Protection End User

Burnaby, BC
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