> That applies for cloth masks and alike Yes. Yet (I know that the article is about N95 specifically, but in general) that is the majority of masks worn. I hav

> That applies for cloth masks and alike Yes. Yet (I know that the article is about N95 specifically, but in general) that is the majority of masks worn. I haven’t been to a country where N95 masks were freely distributed, are there any? > But they are not expensive and can be rotated. In my experience, depending on where you are in the world, N95 masks can be quite expensive and/or very difficult to come by. Rotating them is definitely infeasible for many people. > Any viruses that accumulate on a mask you would be breathing otherwise I disagree on this, because the potentially virion-containing matter is 1) accumulating, and doing so 2) next to the entrance to your breathing pathways (given the mask is worn properly). It’s not a binary thing where you inhale a single virus and get sick, repeat exposure and concentration play a role in how large will your dose be and whether you become infected. > I agree with you but not because I don't think masks work. Don’t get me wrong, I think masks can work, I just think making them work the way they work in theory is much more effort than anyone would be willing to invest (the amount of effort also depending on social norms in a given country), and policymakers should be acutely aware that requiring masks will not in practice yield the benefit they may expect based on how masks are shown to perform in lab tests, and plan accordingly. > When I studied workplace safety and health we learned that protective gear is the last measure you adopt. This is an interesting point!