Face masks able to kill viruses are not new. I even fought some in a Target store before the covid-19 epidemic wiped out stocks. A little-known medical research paper contains details on how to use simple ingredients that will de-activate viruses on a face mask. This book explains the research paper in simple detail and provides a link to the original research so that the reader may verify the truth of the contents.
Librarian Note: There is more than one author in the Goodreads database with this name. This profile may contain books from multiple authors of this name.