We have talked about this issue on different occasions before, but at Biosalud we believe that it is important to emphasize the different level of protection and the use that should be made of the different types of masks, as we find some confusion among the population. In other words, you see FFP2 on the street and people wearing cotton masks with very nice prints, but they are nothing more than a muzzle that is even more dangerous to their health than the fact that they are not wearing anything.
That is why we echo this table published by various U.S. hospitals and universities in which we make a comparative relationship of the different types of mouth protection, their proper use and their level of filtration against both micro-droplets and aerosols: types of masks and their level of effectiveness