Which Mask Should You Wear?

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Which Mask Should You Wear?
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Face masks have become an emblem in the fight against the coronavirus, with officials in the United States and elsewhere recommending -- and in some cases requiring -- that people wear them to help slow the spread of the deadly outbreak.Figuring out what to wear is not so easy. N95 and medical masks,

Face masks have become an emblem in the fight against the coronavirus, with officials in the United States and elsewhere recommending — and in some cases requiring — that people wear them to help slow the spread of the deadly outbreak.

Here’s a look at some of the types of masks you might encounter, how they work, what to consider when making your own and the level of protection they could provide.The N95 is the most recognizable and effective mask. Its name means it can block at least 95% of tiny particles — 0.3 microns — that are the hardest to capture. An average human hair is about 70 to 100 microns wide.

Some N95s have exhalation valves on the front, which make it easier to breathe. Those masks are often used in construction. A mask with a valve should not be used in areas that are meant to be sterile, like hospital operating rooms.Medical masks come in a few varieties and are less effective than N95s: Some filter as much as 60% to 80% of small particles under lab conditions. When worn properly, they can help prevent the spread of the coronavirus by catching droplets when you cough or sneeze.

A good homemade mask uses a material that is dense enough to capture viral particles but breathable enough that you can tolerate it.

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