claim: ordinary face masks are not harmful
summary: facebook posts in the uk falsely claimed that face masks can cause hypercapnia by making you breathe in too much carbon dioxide
subject_description: wearing a mask can cause hypercapnia, by making you breathe in too much carbon dioxide.
Motive_Description: stoke fear about the use of masks
author_description: general public
keywords: coronavirus, mask, hypercapnia, carbon dioxide