2020 famask 3 уровня ear-loop dust mouth эр 3-слойный нетканые пыли маска мягкая маскере дышащие открытый рм2,5 фильтр activate углерода кол

2020 famask 3 layer ear-loop dust mouth er 3-ply non-woven dust mask soft maschere breathable outdoor pads pm2.5.1.the first layer: high efficient filter cloth filter the dust of micron.2.the second layer: meltblown cloth to filter industrial pollutants, automobile exhaust, second-hand smoke pollen allergies.3.the third layer: high efficient filter cloth filter benzene and a smaller function of filtering dust microns.4.the fourth layer: activated carbon cloth filter density, sma.