Respiratory mask N95
Respiratory mask N95 A respiratory face mask perhaps is the easiest way to limit the negative effects of smog on a human-being. Respirators consist of three layers: the external layer protects against biological fluids, the medium one serves as a filter that isolates respiratory organs from 95% harmful particles diametered up to 0.3 microns, and the internal layer protects from dampness. Respiratory masks of N95 type also effectively protect against particles with a diameter of 2.5 microns and even less. These respiratory masks have FFP2 protection level.