China Wholesale Waterproof Antivirus Mouth Disposable Medical Kn95 Face Mask

Product 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 non-woven , thiAuto Repair Equipment & Tools cker 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 sensitDental Apparatus ive skin.
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Testing Items

Requirement

Formaldehyde content

≤20 mg/kg

PH Value

Antenna 4.0~7.5

Ethylene oxide residue

≤10μg/g

Bacterial filtration efficiency(BFE)

≥95%

Particulate matter filtration efficiency(PFE)

≥80%

Ventilation resistance

≤80Pa

Breaking strength of the mask belt and the joint between the mask belt and Customized Service for Electronics the mask body

≥10N

Heavy metal content

Arsenic

≤0.2mg/kg

Cadmium

≤0.1 mg/kg

Cobalt

≤1.0 mg/kg

Chromium

≤1.0 mg/kg

Copper

≤25.03 mg/kg

Nickel

≤1.0 mg/kg

Lead

≤0.2 mg/kg

Antimony

≤30.0 mg/kg

Microbial index

Coliform group

No

Pathogenic pyogenic bacteria

No

Total fungal colonies

≤100CFU/g

Total bacterial colonies

Wheel & Caster ≤200CFU/g

Vision under mask

≥60°

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Packing & Delivery