Odds are that we have all owned a pair of leather boots, at some point in our lives. Maybe it was for fashion, way back in high school, when we were in our “punk-rock stage.” Or maybe it was for our job that we had a couple years ago as
The global population is being encouraged to wear non-medical masks while in public, to reduce Covid-19 transmission. People are making their own masks – but some of them may increase the risk of infection, due to their lack of water repellency, and improper cleaning. What types of masks are there?