China Kn95 N95 Ffp1 Ffp2 Ffp3 Disposable Dust Face Mask

Product Description
FeaturesCable Tools of 3D Cup Shape 5 Layer Mask Virus Medical Face Mask KN95.
5-layer high-effective filter the bacteria structure.
The frist and fifth layer-- PP non-woven ,Absorbs dust, odors and harmful particles.
The second and fourth 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.
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Testing ItemsRequirementFormaldehyde content≤20 mg/kgPH Value4.0~7.5Ethylene oxide residue≤10μg/gBactHydraulic Tool erial filtration efficiency(BFE)≥95%Particulate matResistor & Potentiometer ter 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 groAnalysis Instrument upNoPathogenic pyogenic bacteriaNoTotal fungal colonies≤100CFU/gTotal bacterial colonies≤200CFU/gVision under mask≥60°