Hearing protection devices

November 7, 2016

 

When either an earplug or earmuff is properly fitted, the sound of your own voice should change, becoming deeper, hollow or muffled.  If you don’t hear the change, or if it isn’t the same in both ears, you have not obtained a proper fit and should retry fitting.

Discover how 3M science helps you get smarter about hearing protection.

Download the poster. (8.5x11)  (11x17) (12x24)

 

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