3M E-A-Rfit Dual-Ear Validation System testable
High ratio of NRR to earcup depth
Low-profile cup design for improved compatibility with other personal protection equipment (PPE)
Noise Reduction Rating (NRR) between 25–27 dB (depending on the attachment type)
Replaceable ear cushions and foam liners (hygiene kit HYX4)
Slow-recovery, high-density foam