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. Reducing noise levels from 30-31 dB, model dependant, tested to EN 352:2020 Compatible with the 3M E-A-Rfit Dual-Ear Validation System Large space inside the cups helps minimise heat and moisture build-up Wide, comfortable foam sealing rings provide optimum seal and ideal comfort, even during long periods of use The cushions and foam inserts, available as replacement Hygiene Kits, are easy to replace if they become worn or damaged, extending the life of the product Use in loud, demanding environments with substantial industrial noise such as airports, constr