Peter Girguisさんのイラストまとめ
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A father, a son, and a wholly owned subsidiary of the Girguis Flying Circus. Occasional talking head. Here to fight entropy, and you know how that’s going.
girguislab.oeb.harvard.eduフォロー数：1986 フォロワー数：5094
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I am often asked "what is an N95 respirator?" Briefly & plainly, it is a mask that is certified to trap 95% of particular particles. Many also trap viruses.
IT IS NOT a filter with holes too small for viruses to enter. you could not breathe through that. Read more here. 4/n
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