You understand what ad hominem means, right? Don't worry, I've been around for many years. I just go through periods of not having an account, to control the ti

You understand what ad hominem means, right? Don't worry, I've been around for many years. I just go through periods of not having an account, to control the time I waste online. I've seen most of those studies before. Many of them are not even peer-reviewed papers, they all contain big caveats like "these results were not very conclusive and more research is needed", and many use very simple methodologies (eg, like assuming that some reduction in aerosol particles of a certain size will certainly result in a useful reduction in emitted viral particles). Research labs have access to viral samples (it doesn't have to be Covid). I am sure that no-one has measured how many aerosol-bourne viral particles are stopped by cloth masks, because the results would be quite damning.