I have a friend who is a high school science 'teacher' who is one of most scientifically illiterate people I have ever met. We has a slight falling out in summer 2020 because he told me a study of mask ineffectiveness that I sent him was too long to read. It was a mere 10 pages long, and the pertinent part was one whole paragraph. This 'science teacher' told me that he believes they work so the study didnt matter.