5 stock replaceable ply face shipin dhl pad with activated activate carbon pm2.5 filter dustproof pm 2.5 s mask tlpfy6014 qad9hg

in stock replaceable 5 ply famask pad with activated carbon dustproof pm 2.5 s mask tlpfy6014 x.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.