рм2,5 рот маска pad дети дыхание valve anti haze дышащий маска против пыли рот-муфельные рм2,5 фильтр activate углерода fafor дети d1481

pm2.5 mouth mask pad kids breath valve anti haze breathable mask anti dust mouth-muffle fafor children d1481.1.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.