Product Description 3M™ PELTOR™ Optime™ III Earmuffs feature a double cup design that helps improve attenuation at lower frequencies. Reducing noise levels from 30-31 dB, model dependant, tested to EN 352:2020. CE Approved, EN 352-1:1993 Compatible with the 3M™ E-A-Rfit™ Dual-Ear Validation System. Large space inside the cups helps minimise heat and moisture build-up.
