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5 pcs per pack >98% BFE (Bacterial Filtration Efficiency) >99% PFE (Particle Filtration Efficiency) 3D design soft, comfortable and breathable

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5 pcs per pack >98% BFE (Bacterial Filtration Efficiency) >99% PFE (Particle Filtration Efficiency)

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5 pcs per pack >98% BFE (Bacterial Filtration Efficiency) >99% PFE (Particle Filtration Efficiency) Main materials: First layer (outer layer): Nano Silver Oxide Non-woven Fabric Second layer: Melt Blown Fabric Third layer: Hot air cotton Fourth layer: Melt Blown Fabric Fifth layer: Nano Silver Oxide Non-woven Fabric Features: 3D design, soft, comfortable and breathable Environmental friendly and cost effective Suitable for use in High Risk area Introduction: Nano Silver Oxide Anti-virus Fac

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Main material First layer (outer layer): Non-woven Fabric Second layer: Melt Blown Fabric Third layer: Non-woven Fabric

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Main material First layer (outer layer): Non-woven Fabric Second layer: Melt Blown Fabric Third layer: Non-woven Fabric

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First layer (outer layer): Non-woven Fabric Second layer: Melt Blown Fabric Third layer: Non-woven Fabric

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Non-stick blue non-woven fabric, Non-stick white non-woven fabric, Meltblown white non-woven fabric, Nose metal, Elastic ear loop.