Quality filter membrane: KN95 Protective Mask made of safe medical standard materials, genuine security! Safety material: using polypropylene nonwoven fabrics, melt-blown fabrics, efficient filter cotton, soft nonwoven fabrics, forming four protection layers, more effective filtering and protection of particulate matter, In line with international standards. Comfortable design: 3D three-dimensional shape is designed according to human face engineering, which ensures the tightness and increases the breathing volume of the mask, greatly improving the breathability, making it more comfortable to wear and exhale. Scope of use: KN95 Protective Mask Suitable for protection of virus, PM2.5 haze particles, chemicals, coal dust, cement dust, metal, smelting, and processing manufacturing. Applications: daily life, factory workshop, SPAs, hospitals, clinics, school, workplaces, etc Function: filter PM2.5, virus, bacteria, germ, and harmful substances in the air, protect your health! KN95 Respiratory Mask is Made in CHINA Specifications: Filtration Efficiency: ≥95% Execution Standard: GB2626-2006 KN95 Brand: Baoweikang Material: Non-woven Fabric Protection Class: KN95 Color: White Brand new