1000шт fagasket pad коврики famask прокладка замена внутренняя панель водоотталкивающая нетканые activate угольный фильтр не ткать рм2,5 тре

1000pcs fagasket pad mats famask gasket replacement inner pad water repellent non-woven three-layer protective.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.