5 слой рм2,5 активировать углерода маски фильтра цикл 100 прокладка безопасный анти пыль дышащий рот famask замена колодок удобный коврик

100 gasket safe anti dust breathable mouth famask replacement pad comfortable pad.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.