одиночная тара 3 слоя рм2,5 маска с activate угольный фильтр маска для лица pad нетканые защитная дышащий хлопок мат для продлить маски

single packaging 3 layer facial mask pad non-woven protective breathable cotton mat for extend mask lifespan.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.