The science on this is not controversial. Masks work. Denying that only shows you have fallen for the soundbites and not read the actual studies. For one thing,

The science on this is not controversial. Masks work. Denying that only shows you have fallen for the soundbites and not read the actual studies. For one thing, most of the ones usually cited are testing, with loose controls, surgical style masks for the flu, which has both a different particle size and far lower infectivity than Covid.