N95 masks can protect against the new coronavirus.N95 is a certification standard, is the U.S. National Institute for Occupational Safety and Health recognized a kind of nine kinds of particulate matter protection masks in one.N means not resistant to oil, 95 means that exposure to a specified number of special test particles, the mask inside the ion concentration should be more than 95% lower than the ion concentration outside the mask, and 95 is the lowest value, so the use of the mask’s protection ability is nearly perfect. N95 means that under standard test conditions, the mask can filter up to 95% of dust, acid or paint mist, microorganisms, etc. N95 is not the name of a specific product, as long as the product meets the N95 standard can be called N95 mask. Source: Dr. Yurai