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2020-8-7 · The N95 mask is a descendant of Wu’s design. Through World War I and World War II, scientists invented air-filtering gas masks that wrapped around your entire head to clean the air supply.

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An urgent shortage of N95 face masks in hospitals, stock in blood banks and volunteers for food banks is creating very real road blocks for the first responders who are providing care and food to people in need during the coronavirus outbreak. For the most up-to-date news and information about the coronavirus pandemic, visit the WHO website.

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