Four years ago, long before the pandemic made masks ubiquitous, a U.K.-based startup called Masuku began developing a better face mask to help filter out pollution in smoggy cities. Masks on the ...

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 ...

Maybe you’ve hacked together a DIY mask from an old T-shirt or pillowcase over the last few weeks. That’s probably good enough for most uses, but if you want to get precise about it, a new study ...

Paper towels, coffee filters, cloth and other materials can be used for homemade coronavirus face masks during the pandemic. But which are most effective? A study of homemade face masks by ...

Federal health officials have now recommended that we cover our faces with fabric during the coronavirus pandemic. But what material offers the most protection? The Centers for Disease Control and ...