I was wondering the same. I'm by no means professional but it seems to be better than nothing, especially for people who sneeze. In China, it's pretty much con

I was wondering the same. I'm by no means professional but it seems to be better than nothing, especially for people who sneeze. In China, it's pretty much contained now, and everyone wears masks on the street -- The thing is, there are 1.3 billion people, of course there are a lot of people couldn't buy or afford surgical masks, let alone N95 masks. It turns out people wear regular masks, or even they don't have any mask they sew their own mask. Also, most surgical and N95 masks are disposable, in China, people cover their hand sewed mask outside, covering the disposable masks inside and try to reuse them, and disposes the hand-sews masks. This hack, of course, have potential risks, but it might help for people who are running out of masks.