3M Peltor Optime 105 Cap-Mounted Earmuffs provide effective hearing protection for noise levels up to 105 dBA. The easy cap-mount design are attached with double-shell technology. Proprietary Twin-Cup design has soft, foam-filled earmuffs. Earcup pivot points that tilt for optimum comfort and efficiency. Liquid/foam filled earmuff cushions. Color-coding to help match attenuation needs. Noise Reduction Rating (NRR)*: 27 dB. CSA Class AL
Applications: Automotive, General Manufacturing, Sub Applications, Military Maintenance, Military Maintenance, Repair and Operation (MRO), Mining, Oil & Gas, Pharmaceutical, Repair and Operation (MRO), Transportation
*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.