свободный dhl корабль! лицо прокладка 5-слои для 2.5 анти-смог загрязнение пыли фильтрующего слоя маски qa27go

famask pad gasket 5-layers for 2.5 anti-smog dust pollution mask m.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.