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™.