Following new guidance issued last week by the Centers for Disease Control and Prevention that people in the U.S. wear masks in public settings to mitigate the spread of covid-19 between individuals who may be asymptomatic—and as available masks are desperately needed by health workers on the front lines of the global coronavirus pandemic—the agency has now issued a guide for do-it-yourself masks from a coffee filter or T-shirt.

Following new guidance issued last week by the Centers for Disease Control and Prevention that people in the U.S. wear masks in public settings to mitigate the spread of covid-19 between individuals who may be asymptomatic—and as available masks are desperately needed by health workers on the front lines of the global coronavirus pandemic—the agency has now issued a guide for do-it-yourself masks from a coffee filter or T-shirt.