dhl anti- shipkids 5 k fawholesale,essential dust russian cotton mask pad daev 2 mvay

5 k anti- dust fawholesale,essential russian cotton mask pad w.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.