3M Peltor Earmuff for Safety Ear Protection Black And Chartreuse Model X4A/37273(AAD) Over-The-Head Hearing Conservation Earmuffs

These ear muffs passively block noise by relying on the insulating materials of the ear cups to dampen sound. They re typically worn in areas where workers don t need to speak with one another and the goal is to block all or most surrounding noise. As the NRR of these ear muffs increases they tend to get bulkier due to the larger ear cups and increased insulation materials.