I'm referring to an article published in Nature: Universal and reusable virus deactivation system for respiratory protection. It has had some media coverage over the past few months, e.g. https://www.businessinsider.de/international/mask-coated-in-salt-neutralizes-viruses-like-coronavirus-2020-2/?r=US&IR=T, https://www.intelligentliving.co/salty-coating-masks-kills-coronavirus/
I'm asking myself if it is feasible to use the salt coating for everyday masks as well. Their usage is surging around the world and table salt is also widely available. Hyo-Jick Choi, one of the researchers behind the Nature article tries to work with the industry to create salt coated masks. But he expects a time horizon of roughly 18 months. This would be good for upcoming pandemics. Still I'm wondering if there is someone (e.g. a city, hospital, ...) trying to apply salt coating to existing masks. I mean the resources spent on this are not very expensive and the potential upside is huge.