Our company specializes in providing cheap 3M 6800 masks designed to protect workers in environmental pollution, NIOSH standards, EN 136.1, TCVN

Material composition: Plastic, high-grade silicon and polycarbonate film

Brand: 3M

Weight: 400 grams

Use straps that are durable, firm, and won''t stretch or break

see more : https://www.baoholaodongtot.com/bao-ve-duong-ho-hap/item/78-mat-na-3m-8600-gia-re