I dont comment often but this is important.
WEARING A FACE MASK WILL NOT PROTECT YOU FROM COVID-19.
A face mask is meant to be worn by the I'll and helps mitigate the spread of an illness. If you want to protect yourself with a mask, it has to be a respirator that filters microbes, but even that's not going to do much overall. Just basic anti flu measures such as hand washing are some of the best things you can do to protect yourself and prevent the spread of illness.
Another thing, dont panic about COVID-19, it's not that dangerous in the grand scale of things. According to a report by the WHO on March 6th, COVID-19 has killed about 3500 people globally. Comparatively, according to a report that was released by the United States CDC (also on March 6th coincidentally), the flu has killed at least 20000 in the US alone in roughly the same time. This isn't to say that either is overly dangerous or not dangerous, but to say that theres no reason to panic. Unless you are immunocompromised, just go about your life and take the regular precautions against illness and you should be fine.