cwre 5 рм2,5 лот слоя взрослого ребенка одноразовые колодки insert защитный коврик haze рту заменяемое сек рм2,5 маска pad face

new 5 layer adult child disposable mask pads insert protective mat mouth replaceable s pm2.5 mask pad k917 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.