100 одноразовой рм2,5 сменного фильтра прокладки безопасного анти dust дышащего рот маска замена pad комфортное pad

100 disposable gasket safe anti dust breathable mouth face mask replacement pad comfortable pad features: 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.