взрослые дети пыленепроницаемая маски для лица без колодки с дыханием клапана рм2,5 pm2.5 моющихся многоразовые anti-dust туман ljja3975

disposable face replacement ing pad breathable mask gasket respiring mat for all kinds of designer face mouth 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.