высокое качество face mouth 5 слой рм2,5 activate углерода маски фильтра цикла муфельная аксессуары рм2,5 активированный уголь pad 5ply

high quality face mouth muffle accessories pm2.5 activated carbon pad 5ply 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.