children original dust gldgz fabric carbon filter active mask replacement gas pm2.5 washable anti breathable ation pads fak dus
Description
gldgz children mask replacement gas pm2.5 washable anti breathable ation pads fak dus h.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.
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