5 layer взрослый ребенок одноразовая маска колодки рм2,5 для взрослых пэда insert защитный коврик рту заменяемое сек рм2,5 маска pad mma3365

5 layer adult child disposable mask pads insert protective mat mouth replaceable s pm2.5 mask pad mma3365-b 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.