3 ms·Looks like it may be effective against at least some viruses, too. Interesting.by ISL 7y agoLooks like it may be effective against at least some viruses, too. Interesting.pmiller2 7y agoYeah, that's why I'm glad the door handles in my building are brass.ISL 7y agoIf they are lacquered, the copper will not be at the surface.