Material: 5 layers with valve
- Inner layer: Nonwoven fabrics
- Second layer: Hot air cotton
- Third layer: Melt blown nonwoven fabric
- Fourth layer: Melt blown nonwoven fabric.
- Outer layer: Nonwoven fabrics
Weight: 17g / Mask
Color: White with valve
Size: 17.3×0.4*16.5cm
Quantity: 20 Masks / Pack
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