https://www.buzzfeednews.com/article/clarissajanlim/coronavirus-questions-masks-hand-sanitizers A great informational story from Buzzfeed about the coronavirus and questions like should I wear a surgical mask? and other important questions answered. The only mask that will help is the N95 as all others won't help, but the N95 is all sold out at most outlets. Some are cashing in and offering to sell one mask from anywhere between 20 dollars up to hundreds of dollars. Any other masks like the surgical masks can allow the virus particulates in.
It's more about handwashing and using the mobile hand sanitizers that you don't have to wash off, are your best bet. And....stay away from sick people. And if you are sick stay home.!!!!!