MSA 10034487 Rigid Hard Hat Mounted Earmuff - Each

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.

• For use with MSA non-slotted full-brim hard hats
• Requires drilling into the helmet to mount the muffs
• The ANSI/ISEA Z89.1 class rating of a drilled helmet is Class C