A man wearing black and green 3M™ Peltor™ Over-the-Head Ear Muffs X4A.

Hearing protection fit testing

Knowing each worker’s Personal Attenuation Rating (PAR) takes the guesswork out of managing hearing conservation compliance.

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Why choose 3M for hearing protection fit testing?

Get a complete solution for hearing protection fit testing, with dual-ear and earmuff testing capabilities and a user-friendly interface. The 3M™ E-A-Rfit™ Dual-Ear Validation System is a fast and easy way to find your employees’ PAR, which is an important step in your hearing conservation program. 3M, the leader in hearing protection, can help make this program fit seamless.

  • An exploded product view of the 3M™ E-A-Rfit™ Dual-Ear Validation System.
  • 3M™ E-A-Rfit™ Dual-Ear Validation System features

    • Dual-ear testing
    • Fast, clear accurate results
    • Earmuff testing capability
    • Testing of all 7 frequencies
    • Seamless software integration
    • Science-based, quantitative testing
    • Compact design

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How does the 3M™ E-A-Rfit Dual-Ear Validation System work?

The 3M™ E-A-Rfit Dual-Ear Validation System measures the effectiveness of the earplug or earmuff for the employee providing accurate, quantitative results.

  • A worker being tested with the 3M™ E-A-Rfit™ Dual-Ear Validation System.


  • A 29 db pass rating with a green checkmark icon.


    A "pass" result means the hearing protection is inserted properly and provides sufficient protection for the worker's specific job.

  • A 10 db fail rating with a red x icon.


    A "fail" means the hearing protection is either not inserted properly or is the wrong type or size for the worker's ear canal.

Get the ear fit testing results you can trust


Resources to strengthen worker training and motivation programs

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3M™ E-A-Rfit™ Dual-Ear Validation System.
3M™ E-A-Rfit™ Dual-Ear Validation System.
  • Request a demo of the 3M™ EARfit Dual-Ear Validation System

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3M reserves the right to discontinue or terminate this offer at any time. 3M reserves the right to demo the 3M™ E-A-Rfit Dual-Ear Validation System to those who complete the web request form and qualify for the demo. No purchase necessary. No substitutions, refunds, transfers, or cash equivalent payments will be allowed. One demo per person and/or residential address. Please allow 2-4 weeks for follow up. 3M is not liable for undelivered demonstrations. A maximum of 100 demos will be conducted. 3M will only use this information to respond to your requests and interests and as further described in our Privacy Policy.

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