Product Name: Kn95 Disposable 4ply Non Woven Anti Virus Dust Kn95 Coronavirus Medical Surgical Face Mask Model NO.: M01-5 Medical Device Regulatory Type: Type 1 Logo Printing: Without Logo Printing Group: Adult Quality Guarantee Period: Two Years Ethylene Oxide Sterilization: Ethylene Oxide Sterilization Certification: CE, FDA Material: Non-woven Fabric Type: Face Mask/Apron/Gloves Bfe: 95% - 99.9% Style: Elastic Ear-Loop Application: Disposable, Soft, Convenient, Antibacterial Transport Package: 10PCS/Box Specification: 10 pieces/bag; 20 pieces/bag; 50 pieces/bag Origin: Gaomi City, China HS Code: 6307900090 Product Description Product DescriptionFeaturesof 3D Cup Shape 4 Layer Mask Virus Medical Face Mask KN95.3-layer high-effective filter the bacteria structure.The frist layer-- PP non-woven ,Absorbs dust, odors and harmful particles.The second layer--Meltblown non-woven , thicker than the others, that filters more than 98% of bacteria..The third layer--Skin-friendly non-woven, not only filter particulates but also friendly to sensitive skin..Testing ItemsRequirementFormaldehyde content≤20 mg/kgPH Value4.0~7.5Ethylene oxide residue≤10μg/gBacterial filtration efficiency(BFE)≥95%Particulate matter filtration efficiency(PFE)≥80%Ventilation resistance≤80PaBreaking strength of the mask belt and the joint between the mask belt and the mask body≥10NHeavy metal contentArsenic≤0.2mg/kgCadmium≤0.1 mg/kgCobalt≤1.0 mg/kgChromium≤1.0 mg/kgCopper≤25.03 mg/kgNickel≤1.0 mg/kgLead≤0.2 mg/kgAntimony≤30.0 mg/kgMicrobial indexColiform groupNoPathogenic pyogenic bacteriaNoTotal fungal colonies≤100CFU/gTotal bacterial colonies≤200CFU/gVision under mask≥60°