Factory wholesale disposable black face mask prevent dust 3-ply | Material | PP nonwoven outside; Melt blown filter industrial nose mask,nose mask,chemical nose mask High efficiency electrostatic filter cotton | BFE | Bacterial filtration efficiency>95%/99% | Style | Child/adult | Packing: | customized | Application | Dust proof, PM2.5, bird flu, virus, smog, vehicle exhaust,pollen,
particulate etc | Storage condition | Stored in dry, humidity below 80%, ventilated, non-corrosive gases
warehouse | Features | Easy to wear, new and unique style, good breathability,
comfortable, confirm to international standards; industrial nose mask,nose mask,chemical nose mask | Layer | 1-4 ply optional |
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