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aofeite kn95 folding prevent pm2 for yancheng

Ear Hook Kn95 Dust Mask Flu Prevention In Norway

Ear Hook Kn95 Dust Mask Flu Prevention In Norway N95/KN95 Safety Masks Dust Face Mask Virus Mesh Mask … *N95 masks are effective according to the CDC in helping to prevent the spread of Flu, swine flu and avian flu transmission from person to person.*N95 is the United States standard, it is also called KN95 masks in China, able to filter out 95% of particles as small as 0.3 microns from the air.

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