aduilt пыл против пыли загрязнения полного рот маски рм2,5 сменного фильтр breath широкой планки моющейся многоразовая муфельная защитная с

aduilt dustproof anti dust pollution full mouth mask breath wide straps washable reusable muffle protective with pad.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.