COVID-19: Which mask should you wear?

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COVID-19: Which mask should you wear?

Is a homemade mask as good as one from a store?

Published: April 18, 2020 08:06 NYT

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Facemask — 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. Image Credit: Pixabay

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Various types of masks — 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. Image Credit: NYT

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BC N95 face mask — The N95 is the most recognizable and effective mask. Its name means it can block at least 95 per cent of tiny particles - 0.3 microns - that are the hardest to capture. An average human hair is about 70 to 100 microns wide. These masks, which are designed for single use, are made with polyester and other synthetic fibers, including layers of tangled fibers that act as a filter to make it harder for particles to pass through. Image Credit: Shutterstock

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N95 mask — Make sure there are no gaps between the edge of the mask and your skin. This one includes a nose piece that is molded to your face. Many health care and other workers do annual fit tests that check for air leakage and ensure that masks are sized and fit properly. (If you have facial hair, you won't get a proper fit. They don't fit well on children, either.) 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. Image Credit: Pixabay

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Dubai Health Authority face mask — Medical masks are often made out of layers of breathable, paperlike synthetic fabric that is cut into a rectangular shape and has pleats to help it expand and fit more snugly around your face. They are disposable and designed to be used just once. While they can protect you from large droplets and splatter, their looser fit is partly what makes them less effective than N95s. Image Credit: iStock

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Coronavirus, Lungs, Facemask — You can use materials like a heavy cotton T-shirt, flannel or a tightly woven dish towel. Material with a higher thread count - which allows very little light to filter through - will likely offer the best protection. Various patterns for making a cotton mask have spread around the internet. Look for one that has at least two layers of material, comes up over your nose and below your chin and has secure straps. Image Credit: Pexels

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Copy of 815339-01-08-1586839175763 — Some homemade masks have a pocket sewn in to hold an additional filter. Coffee filters and paper towels have been tested. One experiment found that two layers of paper towels on their own blocked between 23% and 33% of 0.3-micron particles. People have been experimenting with filtering materials, including air filters and vacuum bags. They can be effective but can present risks. Many are not breathable and may contain harmful fibers that you could inhale. Also, the average person doesn't need the level of filtration that these materials provide. Make sure there is a layer of cotton or a similar material on either side of the filter. Image Credit: AFP

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