3M PELTOR Optime II Earmuffs - 3M Peltor 7000039619, These 3M PELTOR Optime II passive headband earmuffs are designed to provide protection against the moderate to high levels of noise that are generally found in the majority of industrial applications. When correctly selected and worn these earmuffs help reduce exposure to hazardous levels of noise and loud sounds. The large space inside the cup helps reduce moisture and heat build-up and the unique low profile headband design helps maintain constant pressure thus providing confidence in protection. The earmuffs have soft wide cushions that help reduce pressure around the ears and improves comfort and wearability. These earmuffs are ideal for use in applications such as airports, automotive, cement manufacture construction, chemical & pharmaceutical manufacture, construction, heavy engineering, metal processing, printing, textile manufacture, woodworking, etc. 3M™ PELTOR™ Optime™ II Earmuffs, 31 dB, Green, Headband, H520A-407-GQ