Reusable face mask(Do not wash)
Sterilization and bacteriostasis technology of copper oxide
Certified by Zhejiang Academy of Science and Technology for Inspection and Quarantine
Cerfified by Guangdong Detection Center of Microbiology
Skin-friendly Non-woven Fabric
High elasticity of ear-loop
Shelf time: 2 years
Filtration Efficiency≥99%