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3M EARfit Dual Ear Validation System

E-A-Rfit™ Dual-Ear Validation System

How do you know if your workforce is protected?

Explore the Dual-Ear System


  • The success of your safety program depends on many factors and requires more than just offering hearing protection. To make sure they are getting the protection they need, you need to know the Personal Attenuation Rating (PAR) of every employee. The highest-NRR earplug or earmuff won’t provide the expected protection if it doesn’t fit right or isn’t used right. Once you know each employee’s number, you’ll be on the way to yours: 100% confidence in your hearing conservation program.

Product Categories

Hearing Protection Fit Testing

  • 3M Hearing Protection Fit Testing

    The 3M™ E-A-Rfit™ Dual-Ear Validation System makes it easy to measure every employee's unique level of protection in hearing protection fit testing and takes the guesswork out of managing compliance in your hearing conservation program. Features:

    • Tests both ears simultaneously in less than 5 seconds.
    • Earmuff and Earplug testing capability
    • Tests at 7 standard frequencies - 125Hz to 8000Hz
    • Science-based, objective, quantitative testing

Safety Ratings

  • Hearing Protection Devices (HPDs) are selected based on the noise exposure at the workplace. Other important considerations are comfort, fit, ability to communicate, compatibility with other personal protective equipment and the workplace environment. The following methods can be used to select the most appropriate HPD: Noise Reduction Rating (NRR), CSA Class, Octave Band or Fit Testing.

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