Adding a third layer to cloth face masks is now recommended for preventing the spread of COVID-19. Non-woven polypropylene fabric is the material of choice for this third layer, but many people may ...
For months, scientists have been saying masks reduce transmission of COVID-19. They now think masks can also make the illness less severe. The reason is the barrier created by a mask likely limits the ...
Polypropylene, the material now recommended for COVID‑19 mask filters: What it is, where to get it
Catherine Clase is a member of the Cloth Mask Knowledge Exchange, a research and knowledge translation group which includes industry stakeholders. Industry stakeholders contribute to the Cloth Mask ...
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