H9A产品概述
3M™ Protective Ear Muffs.
FeaturesLightweight - headbandIdeal for environments including factories, sheet metal works, schools, printing and textile operations and power equipment
Dual low-pressure bands improve comfortBroad foam cushions provide low surface pressureIdeal for noise levels up to 98dBANRR 25dBANSI S3.19-1974/CSA Z94.2