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一般口罩和醫療用口罩差別在哪裡？教你口罩防護等級這樣分

一般口罩則是經濟部負責管理，所有標示或宣稱作為醫療用途之口罩皆屬於醫療器材，能直接預防疾病。
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若標示或宣稱具 N95效果之醫用口罩者，其口罩之防護效率及呼吸氣阻抗罩之防護效率及呼吸氣阻抗「拋棄式防塵口罩」D2 等級之性能規格要求。

醫療用口罩差別圖 / 生活新態度

針對防護空汙 PM2.5 細懸浮微粒，作為民眾於日常生活中空氣污染環境下過濾粒狀物所需配戴之防護型口罩
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標準將口罩之防護效果分為 A（PM2.5 濃度 350 以下）、B（PM2.5 濃度 230 以下）、C（PM2.5 濃度 140 以下）、D（PM2.5 濃度 70 以下）四個等級

其中 A 級防護規範相當於 N99 規格，屬於最高防護等級，能針對紫爆等空汙極度嚴重的環境提最安全的保障。

一般醫療用，有呼吸道症狀、前往醫院電影院等不通風之場所，或前網友呼吸道傳染病流行地區時佩戴，可阻隔 90% 5 微米以上微粒，細菌過濾率達 95%，需每天更換，但破損或弄髒更時則應立即換新。

所謂的 N95、R95、P95 以及濾菌功能更高的 N99、R99、P99，甚至 N100、R100 及 P100 等型口罩，都能有效過濾懸浮微粒或病菌；
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N95 類型口罩主要是防嚴重病毒、重工業粉塵汙染，可阻擋 95% 以上次微米顆粒，因此在密合度、密閉性方面有特殊要求，呼吸阻抗較高配戴起來會比較悶，戴久了也容易缺氧、頭暈、呼吸困難。

此外，應避免重複使用。除第一線醫護人員外，不適合一般民眾長時間配帶，尤其是肺功能不佳者。

棉布口罩的纖維較粗，僅能過濾較大之顆粒，可以作為保暖，避免灰頭土臉與鼻孔骯髒等用途，其優點是可以重覆清洗使用，反之，若未勤於清洗，反而容易孳生細菌。

新冠肺炎疫情再度升溫，為因應國際間及國內新變異株Omicron威脅，這期間也加嚴了戴口罩防疫措施，如：室內外運動、唱歌、拍照等恢復戴口罩。以下再帶大家複習正確的「口罩戴法」以及醫療口罩推薦。

正確戴口罩才能發揮其防護功能，一般平面口罩的正確配戴步驟看這裡：

先檢查口罩是否有缺陷或損壞，並辨識內外層（一般來說有顏色為外層）鼻樑片應在最外層上方。

將鬆緊帶掛於雙耳，鼻樑片固定於鼻樑上，並將口罩攤開拉至下巴。

均勻輕壓鼻樑片，使口罩與鼻樑緊密結合 ！

調整並確認口罩是否配戴夠緊密。

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