высокое качество рот рм2,5 сменный фильтр с 5 activate углерода mask внутренняя колодки dust proof дышащая анти haze рм2,5 сменный фильтр

high quality mouth mask inner pads dust proof breathable anti haze mask pad for k .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.