It is an extraordinary claim that wearing a mask properly does not reduce transmission of viral particles. You'll need to come up with a physical basis for this unintuitive hypothesis if you want to be taken seriously. Then you can point to studies whose results are explained by that hypothesis.
I'm not trying to prove anything. I just rely on the judgement of domain experts.
In this thread I cited Cochrane, The Lancet, SciAm and Science Magazine. If you have more reputable sources, please share them here.
>You'll need to come up with a physical basis for this unintuitive hypothesis if you want to be taken seriously.
It's only unintuitive if you stick to the droplet model. SARS-CoV-2 however spreads like smoke through the air, as I documented already extensively in this post: