| Item No. | ZYB-11 |
| NIOSH Approved Number | TC-84A-7877 |
| Excutive Standard | 42 CFR Part 84 |
| Packing method | 20pcs/box,400pcs/case |
| Usage | Widely used in mining industry and dust workplaces to prevent airborne particles from inhaling into the human body. The filtration efficiency of non-oily particles is more than 95%. |
