5ply рм2,5 активированный уголь колодки активировать угольный фильтр не ткать рм2,5 анти haze dust бумаги mouth эр для здоровья

5ply pm2.5 activated carbon pads anti haze dust paper mouth er for health.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.