3M Peltor Ear Defender Optime III En352-3

3M PELTOR Optime III Earmuffs, 34 dB, Black/Red, Helmet Mounted, H540P3H-413-SV 3M Product Number H540P3H-413-SV, 3M ID 7000107770 · · · Ideal hearing protection against noise arising from extremely noisy environments like airports, marine engine rooms, power stations and print works · · Double casings technology helps minimise resonance effect · · Large space inside cup helps reduce moisture and heat build-up · · Soft wide cushions helps reduce pressure around the ears and improves comfort and wearability · · Easy to replace cushions and inserts helps keep them hygienically clean · · P3H Helmet attachment for helmet mounting · · Helmet mounted version fits directly to many industrial safety helmets without the need for an adapter · · Easy to understand attenuation symbol to help ensure correct product selection