There’s a fantastic educational poster from Greenpeace that I’ve seen in several places (for example, here on AQIcn). It offers great advice on masks, but then it says this: “No effect” it says. But when I read the cited articles, I saw no tests of surgical masks. But I should be nerd fair. Maybe they […]
Category: Masks
Shanghai Technical Inspection Bureau Mask Tests
It’s tough to get good mask data on a wide range of consumer masks. I’ve posted some of my own test data and test data from Dr. Saint Cyr. But another great source of even more mask tests comes from the Shanghai Municipal Bureau of Quality and Technical Supervision. I’ve linked to their tests several times, but […]