For noise levels up to 105 dBA, these cap attached with double-shell technology to provide effective hearing protection - Proprietary Twin-Cup(TM) design has soft, foam-filled earmuffs. - Easy cap-mount design - 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 *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 PELTOR Optime III Earmuffs are high performance hearing protectors for use in extremely loud environments, reducing noise levels by up to 35 dB. They have a double casing that minimises resonance and comfortable soft, wide cushions to decrease pressure around the ears. Available in headband, neckband, helmet attached and Hi-Viz green models.