1. Material/Fabric :3 ply
1st ply. leak proof Non-Woven Fabric ：
Block visible droplets.
2nd ply. Melt-blown fabric：
Filter particulate matter in the air.
3rd ply. leak proof Non-Woven Fabric ：
Absorb exhaled air. Secondary protection
2. Feature :
Adopt three-layer filtering system, mask resistance <49PA / CM.
3. Size: 17.5*9.5cm
4.Payment: T/T in advance
