лицо anti-dust дым аллергии регулируемая многоразовый маска с 2 одноразовая маска pad против загрязнения рм2,5 для рм2,5

face anti-dust smoke allergies adjustable reusable mask with 2 disposable mask pad for pm2.5 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.