3M
3M Optime 105 Over-the-Head Earmuffs
- Effective hearing protection for noise exposures up to 105dBA
- Double-shell technology boosts its noise blocking ability
- Sunlight resistant materials
- Durable stainless steel headband resists bending and warping
- Noise Reduction Rating (NRR) of 30 dB*, highest available in over-the-head style earmuffs
- Noise Reduction Rating (NRR) of 30 dB,* highest available in over-the-head style earmuffs
