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Understanding PM2.5 – Five things you need to know about PM2.5

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Particulate matter (PM2.5), refers to particles in the air that cause pollution. These particles are from a variety of sources, both indoors and outdoors. Cambridge Mask pollution mask Even at moderate levels, it can still be harmful to sensitive people and the use of a pollution mask is recommended. Though the ...

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KouPoTop Washable Reusable N95 Anti Air Pollution Face Mask with Respirator &36 Filters

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Material:Cotton Air Pollution Face Mask with PM2.5 Filters With adjustable nose bridge and hook strap, fit a variety of face, comfortable to wear Reduce the risk of breathing in gases, noxious smells, pollen, smoke, dust and other harmful particles With breathing valve, it allows air to enter the body whilst keeping ...

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