рм2,5 унисекс 5 слоев взрослый ребенок одноразовая маска колодки защитный коврик анти haze рту заменяемое сек рм2,5 маска pad свободный кора

pm2.5 10*7cm kids paper mouth mask anti dust anti haze activated carbon s pad 5 layers children pad 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.