One Mask Is Good. Would Two Be Better?(nytimes.com)
nytimes.com
One Mask Is Good. Would Two Be Better?
https://www.nytimes.com/2021/01/12/health/coronavirus-masks-transmission.html
1 comments
I have been saying that two thin comfortable masks layered over each other is as good as an N95 for blocking the airflow going out. And that is the job of the masks!