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｜originally written by uienwt
一般經認證合格的外科口罩，過濾效力約為80%，乾蒸5次後，過濾效力減損到70%以下，這時就必須丟棄，不能再使用了，而且重複乾蒸，也會讓口罩掛耳的鬆緊帶逐漸彈性疲乏。這是口罩短缺時的應急措施，可以透過適當消毒口罩應急使用，但最重要的是要勤洗手，減少用手觸摸口鼻眼，才是更重要的放疫措施。
References
https://newtalk.tw/news/view/2020-02-10/364808電鍋乾蒸口罩復活術
https://newtalk.tw/news/view/2020-02-10/364808
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