3M™ PELTOR™ Optime 101 Earmuffs H7B fits well with most helmets, eyewear and other safety equipment.3M PELTOR Optime 101 Earmuffs H7A help provide effective hearing protection and are designed for noise levels up to 101 dBA. It provides consistent force to keep the earcups snugly in place yet with a low pressure fit that is more comfortable.
Fit can be verified with 3M™ E-A-Rfit Dual-Ear Validation System
Noise Reduction Rating (NRR)*: 26 dB. CSA Class A
Replaceable ear cushions and foam liners (3M™ PELTOR™ Hygiene Kit HY7)