It was only a matter of time. 

From the article:

According to the CBC, “Health Canada conducted a preliminary risk assessment which revealed a potential for early lung damage associated with inhalation of microscopic graphene particles. Graphene is a strong, very thin material that is used in fabrication, but it can be harmful to lungs when inhaled and can cause long-term health problems.”

Additionally, “daycare educators had been suspicious of these grey and blue masks for a while because they felt like they were swallowing cat hair while wearing them,” per the CBC.

National File has reported extensively on the environmental and potential health effects of wearing COVID-19 face masks.

https://nationalfile.com/bombshell-potentially-toxic-face-masks-made-in-wuhan-china-were-sent-to-canadian-daycares-schools/