Wired: “You’ve seen them a million times. You might be wearing one right now. But do you know how they work to block a potentially virus-carrying respiratory blob? It’s 2022, and by now we’ve all been wearing masks for nearly two years. And unless you are a surgeon or a construction worker who was already wearing them daily, in those two years you’ve probably learned a lot about them—which ones you like best, where to get them, and whether you have any extras stashed in a coat pocket or somewhere in your car. But do you know what makes the prized N95 mask so special? Let’s find out…”