China Kn95 Face Mask Ffp1 Ffp2 Ffp3 Face Mask Shape Anti Dust Mask with Ce

ProduResistor & Potentiometer ct Description
Features of 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 nTools & Hardware StocksInverter on-woven , thicker than the others, that filters more than 98% of bacteria..
The thRadio ird layer--Skin-friendly non-woven, not only filter particulates but also friendly to sensitive skin.
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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 colMachinery Stocks onies≤200CFU/gVision under mask≥60°