“網傳：「戴口罩缺氧綜合症現已席捲全球」、「長時間使用自製或 N95 口罩，會導致氧氣損失 5% 至 20%，導致高碳酸血症...」的訊息”
Social media posts
MyGoPen rated this不實
In short
This claim spread on social media. MyGoPen (Taiwan) looked into it and published its finding on 7 January 2022. Its rating was “不實”.
This check was done by MyGoPen, not by DoesItStand. We list it so you can find it. Their full evidence and reasoning are in their article.