3M™ PELTOR Optime™ 105 Earmuffs H10P3E, Hard Hat Mounted, NRR 18 dB
 
For noise levels up to 105 dBA.
Easy cap-mount design.
Liquid/foam filled earmuff cushions.
Noise Reduction Rating (NRR)*: 27dB. CSA Class AL.
3M™ Peltor™ Optime™ 105 cap attached earmuffs feature double-shell technology to provide effective hearing protection.