pad для детей для взрослых famouth mask white k pm25 pm2.5 маска с угольным фильтром активируйте подходит для k kf94 2 1

pad for kids adult famouth mask white k pm25 suitable for k kf94 2 1.1.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.