In November, the Public Health Agency of Canada (PHAC) suggested that people may want to look at upgrading their masks to protect themselves and help prevent the transmission of COVID-19.

"In general, while non-medical masks can help prevent the spread of COVID-19, medical masks and respirators provide better protection," PHAC said on its COVID-19 mask information webpage.

Respirators (such as N95 and KN95 masks) are considered the highest level of mask protection and were previously recommended only for health-care workers coming into direct contact with infectious patients.

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