The 3M™ E-A-Rfit™ Dual-Ear Validation System allows you to identify the amount of protection that a worker is receiving from their hearing protector. For more information, see the Getting Started section below.
In order to use the 3M™ E-A-Rfit™ Dual-Ear Validation System to measure hearing protector attenuation, you will need to
Software & Training Resources
Most messages are answered within two business days or less; however, some replies require further investigation or clarification.
If you need technical assistance by telephone, please call 1-800-243-4630 then select menu options 1-2-5.
If you wish to request service and/or repair of your 3M™ E-A-Rfit™ Equipment, please contact 3M Detection Calibration and Repair at 1-800-245-0779, ext. 5 to reach our Repair and Calibration Department.
Outside US Customers:
Please contact your local 3M Technical Service person to coordinate the service or repair.