--Material: 4-plys, Exhalation Valve --PP spunbond outer layer--actived carbon fiber filtration middle layer,--PP meltbrown high filteration layer,--PP needle-punched nonwoven inner layer--Color; Grey/white--Application; Petroleum, Construction, Metallurgy, Transportation Mining , Weaving, Polish......

| Item No. | DM6175L |
| Material | Polyester+filter polyester+non woven; Exhalation Valve for filter |
| Layer | 4 |
| Size | One fits all |
| Color | White/blue/grey/Customized |
| Package | 50 piece/box |
| Application | Petroleum, Construction, Metallurgy, Transportation Mining , Weaving, Polishing, Pharmacy |
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