The X Series earmuffs are 3M’s latest advancement in hearing conservation. New technologies in comfort, design and protection all come together in this groundbreaking earmuff line. The X1B is a lightweight, low-profile earmuff designed for protection against low-level industrial noise and other loud sounds. - The wire headband offers consistent pressure over prolonged wearing periods - Earcup pivot points tilt for optimum comfort and efficiency - Replaceable ear cushions and foam liners (hygiene kit HYX1) - Noise Reduction Rating (NRR)b 22 dB. CSA Class A 7100123140 - 10078371671270
