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E-A-Rfit™ User Support

The E-A-Rfit™ Validation System allows you to identify the amount of protection that a worker is receiving from their hearing protector. The purpose of this website is to provide training and software resources for users of the system.

Getting Started

***** NEW E-A-Rfit™ Validation System Version 4.4 Software *****
We are pleased to announce the official launch of the 3M™ E-A-Rfit™ Validation System Software --- Version 4.4. There are several new features to the software including easier navigation and an exciting data exporting feature. Click here for more information.

Click Here for an Updated List of Test Plugs for North America.


Training - Learn the basic steps of earplug fit validation.

3M™ Hearing Conservation Community 3M™ Hearing Conservation Community
3M™ E-A-Rfit™ Validation 3M™ E-A-Rfit™ Validation