An antiviral surface coating technology sprayed on face masks could provide an extra layer of protection against COVID-19 and the flu. The coating developed at The University of Queensland has already proven effective in killing the virus that causes COVID-19, and shows promise as a barrier against transmission on surfaces and face masks. http://archive.today/2021.09.17-122841/https://phys.org/news/2021-09-coating-technology-nanoworms-covid-.html