3M™ PELTOR™ Welding Helmet Earmuffs H505B are designed to be used with the 3M™ Speedglas™ Welding Helmet 9100.3M PELTOR Welding Helmet Earmuffs H505B feature a slim contoured design to fit comfortably under welding helmets. The earmuff's semi soft cup surface minimizes scratch sound transmission and the headband wire provides balanced pressure distribution for a comfortable noise seal.
Noise Reduction Rating (NRR)*: 17 dB. CSA Class B