Professor John H. Lee, Jeonbuk University: Fortunately, it looks like the 22% [copper] with the 3D textile structure of this mask is the most efficient way of protecting against this Covid-19 virus ...
Study on the mode of action of the patented Copperline material on SARS-CoV-2 viruses
English version - German will follow soon
Copperline face mask: effective against Covid-19 | Prof. John H. Lee explains his results
Press release: "COPPERMASK" antiviral functional mask destroys corona viruses
Düsseldorf, September 21, 2020
Copperline Europe presents the world's first antiviral and antibacterial functional mask of its kind ...