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First reported 1,174 days ago
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b. 最後一哩路如何度過?
如果在密閉空間或醫療環境,建議採用
CDC新的口罩建議
(CDC, 2/10/2021)
CDC做一密閉空間研究,釋出5um的微粒
單獨醫用口罩可阻斷42%微粒,布口罩44%
醫用口罩吊帶打結
並內翻邊緣
63%
布口罩放在
醫用口罩上面
82%
雙重口罩
+吊帶打結
96%
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