I thinks it’s slightly less than 150 degrees for 15 mins. to kills SARS. Don’t know if we know about CV but it’s a cousin of SARS.
I’ve been running stuff (including a N95 mask) through our toaster oven on the “warm” setting, which comes to right at 165 deg. F, for 20 minutes, after a 5 minute “preheat”. Nothing has melted or been visibly affected in any way so far. Note however that this toaster oven runs the elements at a low setting on “warm” as opposed to cycling them full on, off, full on, etc., a lot. Radiant heat from “full on” elements in an on-off cycle in some ovens could be problematic for some items.
Thanks for reply. Curious that Covid-19 is so unique from the past corona viruses.