Reduces noise levels up to 35 dB Double casing technology minimises resonance effect Large space inside the cups helps minimise heat and moisture build-up Soft, wide, foam cushions help reduce pressure around the ears Cushions and inserts available as replacement Hygiene Kits Headband is padded and covered for comfortable wipe clean wear High-Vis colour provides extra visibility on high-risk workplaces such as airports, rigs, construction sites and roadside work 3M™ PELTOR™ Optime™ III Earmuffs are a high performance hearing protector, developed for use in extremely noise environments like airports, marine engine rooms, power stations and print works. Each 3M H540A-461-GB OPTIME III Ear Defenders Headband Hi Vis SNR31