3M Peltor Optime II Headband Earmuffs are our innovative hearing protectors for use in loud, demanding environments including airports and construction sites, reducing noise levels up to 31 dB. These earmuffs feature soft foam cushions, ventilation channels in the sealing rings and spacious cups, providing agreeable comfort even in long-term use and improving incidence of wear and compliance. Tested in accordance with EN 352:2020.