pm2.5 mask
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 pm2.5 mask 相關參考資料
3M PM2.5空污微粒防護口罩 - 3M 台灣
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The "N95" label stands for the mask ability to filter out at least 95% of airborne particles larger than 0.3 microns (for reference, PM2.5 particles are 2.5 microns). https://aqicn.org pm 2.5 anti pollution mask - Amazon.com
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PM2.5是一種可吸入的顆粒物，也是造成空氣污染的元兇之一。它的來源很多，室內室外都存在可能的來源。 Cambridge Mask pollution mask ... https://www.cambridgemask.com. 口罩標準用語你要知！韓國KF94．PFEBFEVFE．日本PM2.5 ...
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