2pcs дышащего анти пыль маска с 50 замены маской колодки самостоятельного использования 3 слоя s рм2,5 моющихся многоразовое здоровье маски

2pcs breathable anti dust mask with 50 replacement mask pads self-use 3 layers s pm2.5 washable reusable health car.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.