Made of environmental friendly material, moisture-proof, non-toxic, soft and comfortable. Three layers of protection for effective filtering. Hypoallergenic. Low resistance to breathing. Adaptable nose bar. High Filtration capacity. Perfect fitting. Test Types And Certificates: BFE: Maximum Bacterial Filtration Efficiency, Certifications: FDA, TCVN 8389-1:2020, ISO 13485:2016.
