There is one researcher out of Indiana University that has success killing the virus on a mask with zinc and something else creating some kind of charge
Dont recall at the moment the other substance
I saw someone selling zinc dotted masks on Etsy trying to cash in on it. I didnt look to see how they were made or details
Interesting- i think the other article i read about the Israeli masks earlier stated that they created some kind of a charge in the mask too that traps the virus while antimicrobial annihilates the virus
Yup- found some info on another technology similar to the sonovia masks:
Argaman Technologies, an Israeli textile research company, claims its BioBlocX masks contain cotton and polyester fibers embedded with accelerated copper oxide particles. Similarly to Sonovia’s tech, Argaman says that when virus particles hit the mask, positive ions from the copper attach themselves to the virus and destroy its ability to replicate. The masks also include a layer of a nanofiber membrane that allegedly filters out pathogens.
https://www.wired.com/story/weird-concepts-theoretically-supercharge-mask-fabrics/