3M H10B 105 OPTIME TWIN CUP WITHBACKBAND (NRR29)

ear muffs (EARMUFFS)Used to cover both ears to reduce external noise levels that exceed the standard to a safe level.

On both sides of the earcups there are numbers 105, indicating the ability of the earcups to reduce noise that can safely prevent the loudest level of up to 105 decibels (A).

The stem of the headband is made of stainless steel, adjustable in length. and attached to the ear cover at 2 points on each side to help spread the pressure on the head Increase comfort while wearing and durable.

The proprietary Twin-Cup® design ear cushions provide a more secure fit and reduce pressure around the ears. To prevent very loud noises caused by resonance (Resonance) inside the ear can prevent high and low frequency sounds well.