We have supplier reusable mask with virus filter sheet which BFE>99% (Bacterial Filtration Efficiency) which is higher than regular 3-ply disposable masks and cotton masks. Our reusable mask for adult and kids can provide additional protection for the front line heroes who are experiencing a high level of physical contact with the public during the course of their employment. Design Adjustable Ear Loop to Fit All Face Sizes Breathable, Washable, Sustainable Specification Outer Fabric: 100% Proprietary Knitted Fabric, Ultifresh™ Treated up to 99.94% anti-bacterial. Center Layer: Melt-Blown Fabric; BFE ≥ 99% Inner Layer: 100% Softstyle Cotton Certification SGS certified Intertek certified GTT certified