Warnings about graphene face masks

By Sean Feagan, Local Journalism Initiative Reporter

Health Canada has advised Canadians not to use face masks containing graphene, saying these products pose a safety risk.

Throughout the COVID-19 pandemic, many different masks have appeared on the market because of face covering laws and recommendations. A new type of mask is those containing graphene, a new nanomaterial (materials made of tiny particles), which have been advertised as having antiviral or antibacterial properties.

But using these products could result in the inhalation of graphene products, which could result in health issues, according to an April 2 advisory by Health Canada.

Health Canada has reviewed research showing that inhaled particles could cause early lung toxicity in animals. But the risk of inhaling graphene particles from face masks and the health risks related to this is not yet known. The amount and duration of exposure and type and characteristics of the graphene material used all affect the chance of inhaling particles and associated health risks.

Health Canada is requesting data from mask manufacturers to assess the potential health risks of their masks containing graphene.

Until Health Canada conducts an assessment to determine the safety and effectiveness of graphene-containing facemasks, it is removing them from the market. It has directed all known distributors, importers and manufacturers to stop selling and recall these products, and has contacted provinces and territories to advise them to stop distributing them.

People should avoid face masks labelled to contain graphene or biomass graphene, according to the advisory. Anyone who has used graphene face masks and has health concerns, such as new or unexplained shortness of breath, discomfort or difficulty breathing, should consult their health care providers. Adverse events or complaints regarding graphene face masks may be reported to Health Canada.