на складе оптовой pad 5 слоя рм2,5 активируйте угольный фильтр mask прокладки замена pad mouth 5 слоя рм2,5 активировать угольный фильтр мас

in stock wholesale pad mask gasket replacement pad mouth mask pm25 pad mat for protective mask.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.