3M™ Peltor™ Optime™ 105 Behind-the-Head Earmuffs, Hearing Conservation H10B 10 EA/Case

For noise levels up to 105 dBA, these behind-the-head earmuffs feature double-shell technology to provide effective hearing protection.

• Patented Twin-Cup™ design has soft, foam-filled earmuff cushions.
• Behind the head design allows for easy use with hard hats.
• Liquid/foam filled earmuff cushions.
• Color-coding for compliance sighting.
• Noise Reduction Rating (NRR)*: 29 dB. CSA Class AL *The NRR may overestimate the hearing protection provided during typical use. 3M recommends reducing the NRR by 50% for estimating the amount of noise reduction provided. 3M is Leading the Advancement of Hearing Conservation™.