I found this list of 40+. The second one seems to fit your criteria https://www.kxan.com/news/coronavirus/do-face-masks-work-here-are-49-scientific-studies-that

I found this list of 40+. The second one seems to fit your criteria https://www.kxan.com/news/coronavirus/do-face-masks-work-here-are-49-scientific-studies-that-explain-why-they-do/ https://www.kxan.com/news/coronavirus/do-face-masks-work-her...