5 слой рм2,5 защитный рм2,5 одноразовая маска для лица pad замена pad маска внутренняя pad прокладка для замены колодки маска

disposable mask pad 5 layers activated carbon adult child breathable inner replacement protective gasket for mouth covers mask pads 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 filt