This reply
Lin mark this message contains misinformation
originally written by Lin
假的,不論生病與否,都要將有顏色的防水層朝外,才能夠同時阻隔內與外的汙染物,保護自己也保護他人。因為如果舒適層對外的話,當沾到飛沫口水時,病菌就很容易滋長,增加疾病傳染的風險。

References

https://www.thenewslens.com/article/130691

https://health.tvbs.com.tw/medical/322613

「健康人口罩要正戴、生病的人則要反戴」是絕對錯誤的說法 - The News Lens 關鍵評論網

曾有謠言指出,健康人戴口罩正戴,把防水層(有顏色)朝外;生病的人則要反戴,讓防水層向內。這是「絕對錯誤」的配戴方法。

https://www.thenewslens.com/article/130691

The content above by Cofacts message reporting chatbot and crowd-sourced fact-checking community is licensed under Creative Commons Attribution-ShareAlike 4.0 (CC BY-SA 4.0), the community name and the provenance link for each item shall be fully cited for further reproduction or redistribution.