Good morning!
There is a lot of controversy on whether and what types of face masks work. I have included a link here to a fairly comprehensive fact check assessment of the issue. If you don’t have time to read it, the take away is this:
“For those who choose to wear a mask, Feng recommended learning the proper technique to reduce accidental infection from the mask itself. As demonstrated in a WHO video, the key is to not to touch the outside of the mask — and to wash your hands if you do. The CDC also offers advice and a few patterns for those creating their own masks. But most critically, don’t think a mask protects you or exempts you from social distancing or hand washing. As Feng told us, it’s “better to stay home.””
Here is the link to the full article.
https://www.factcheck.org/2020/04/covid-19-face-mask-advice-explained/