>>The difference in measured protection against inward and outward protection is remarkable, and cannot be explained from the available data as we only measured the overall effect. A differential effect on the amount of leakage seems most plausible. At the same time, we cannot exclude that wearing of face masks, even FFP2 or surgical masks by patients might still significantly reduce transmission. From a 2008 study on masks reducing droplet spread (https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2440799/). What bothers me about the video guy's intro is that the first 2 or 3 papers he discusses as his prime examples are all comparing N95 to cloth masks and not finding a difference. But on top of that point, he's also confounding the problem with the real issue - masks don't tend to protect people who are well. The reason that masks have been advised since 2010 for sick patients is that these are the ones doing the spreading of the disease (the outward protection mentioned in the linked paper) via their exhaled moisture droplets. The reason the (((powers-that-be))) want everyone to wear a mask is because they claim that the asymptomatic people are still doing the spreading or some bullshit. If nothing else, the fact that it only took the federal health and human services task force *2 days* to establish that the CDC was manipulating numbers should indicate the real question isn't mask use that's causing 'a second wave' or 'an explosion of new cases.' It was found antibody positive tests (as in, people who can fight the disease; no longer virus positive) were added to the case numbers and a lack of reporting of negative tests; probably in the thousands. If we tested for sick individuals, like South Korea was doing with the forehead thermometer agents, and just sent them home for quarantine, we'd be a lot better off. Quarantine is not for healthy people, nor are masks.