5 ms·Wow, that's surprising, and exciting. If true, every room in a hospital should have these lights.by modeless 7y agoWow, that's surprising, and exciting. If true, every room in a hospital should have these lights.77pt77 7y agoLet's start with copper doorhandles and bed-frames. Far better tested and understood.dijit 7y agoIt still takes 4hrs for copper to kill coronavirus. Why not both?dogma1138 7y agoOne of those is known not to cause long term adverse effects.