Ever pay attention to all the different sizes and shapes that earplugs come in? Even if you haven’t, you’ve probably noticed that some work better in your ears than others. 3M developed the E-A-Rfit Dual-Ear Validation System which measures each person’s unique level of protection.
Chris Ermides Ever pay attention to all the different sizes and shapes that earplugs come in? Even if you haven’t, you’ve probably noticed that some work better in your ears than others. 3M developed the E-A-Rfit Dual-Ear Validation System which measures each person’s unique level of protection.

Hearing protection is not a one-size-fits-all solution. Earplugs and earmuffs that aren’t appropriately sized for an individual can fail at protecting a user’s ears from damaging decibel levels. At the recent World of Concrete, 3M demonstrated a system that they sell to big commercial and industrial contractors. But they also set it up at some distributors, so you can test fit different ear plugs and ear muffs before buying them.

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