Well, if your chances of getting infected are drastically reduced, then so is the use of the “protect others” effect of wearing the mask, so overall these masks are likely to be very useful.
That said, a slightly modified design that filters air both on the in- and the out- breath might be a good idea. This way, you keep your in-breath filters dry and have some “protect others” effect.
Well, if your chances of getting infected are drastically reduced, then so is the use of the “protect others” effect of wearing the mask, so overall these masks are likely to be very useful.
That said, a slightly modified design that filters air both on the in- and the out- breath might be a good idea. This way, you keep your in-breath filters dry and have some “protect others” effect.