одноразовые маски колодки рм2,5 в индивидуальной упаковке лот маска мышек pm2.5 в коробке

ffp3 mask mascarilla ffp2 dust face mask add mask pad non-woven fabric as kn95 niosh n95 features: 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.