الثلاثاء، 3 نوفمبر 2020

Canada's top public health doctor now recommends 3-layer non-medical masks

By on 11:24 ص
Canada's top public health doctor now recommends 3-layer non-medical masks
CDA Covid 20201002

The Public Health Agency of Canada is now recommending Canadians choose a three-layer non-medical mask with a filter layer to prevent the spread of COVID-19 as they prepare to spend more time indoors over the winter.


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