Canada bans common blue mask

Canada Bans Common Blue Mask Due to Lung-Cutting Damage, CDC Stays Mum

In 2021, to dead silence in the US media, Canadian health authorities said that severe lung damage may be caused by many of the masks which are still sold in the US, and banned them.
The CDC has never informed Americans of the dangers.
According to the Canadian authorities, masks which contain graphene nano-materials, widely available in the US including Amazon, can cause cellular lung damage. They were not meant to be worn for days on end, long-term.