3M™ E-A-Rfit™ Dual-Ear User Support
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. The purpose of this information is to provide training and software resources for users of the system. See Getting Started below.
List of Test Plugs for North America (PDF 129KB)