сменная рм2,5 5 слойная маска для лица pad pm2.pm2.5 5 с активированным углем пыль pm 2.pm2.5 5 с воздухом fp3 маской

lot 5 layer adult child disposable mask pads insert protective mat anti haze mouth replaceable s pm2.5 mask pad features: 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.