I gave you the research from the CDC's own site. The CDC's original recommendation was to
not wear masks. They changed that guidance in May, due to political pressure -- but the research hasn't changed. Or I can quote from the WHO Report: "Advice on the Use of Masks in the Context of Covid-19"
(link here).
" At present, there is no direct evidence (from studies on COVID19 and in healthy people in the community) on the effectiveness of universal masking of healthy people in the community to prevent infection with respiratory viruses, including COVID-19. "
Look, you two are both reasonably intelligent individuals. Don't automatically disagree for the sheer sake of disagreement. The research is publicly available; you can find all this out on your own:
1. Cloth masks aerosolize. Anyone wearing one should be shot on sight.
2. Three-layer cotton masks do not aerosolize (much). If people follow protocols on the wearing, handling, and disposal of them, they can reduce transmission somewhat. Nowhere near the 30-50% level that the media has quoted, but somewhat. That is why research indicates their use in
medical settings, where people are trained on how to wear and use them.
3. The general public does
not wear masks properly. They adjust the mask often, touching their face far more. They don't fully cover their nose or mouth. They reuse masks, they handle them without hand-washing, and they don't dispose of them properly. These reasons are why the minimal benefits of mask use are more than outweighed by the potential dangers.
4. Far more effective than mask use in public settings is simple hand-washing. But how often have you seen the media talk about that?