And another: surgical masks reduce emission by 90% and unvented N95 by 64% during speaking and coughing compared to no mask
https://www.nature.com/articles/s41598-020-72798-7.epdf
Your studies are not clinical trials so they are pretty much meaningless. The Danish study is the most comprehensive mask study ever done.
I can tell you have not spent much time evaluating alternate hypotheses using data from objective studies.
