... ,3-ply, 2-ply, 1-ply Disposable Active carbon face mask have been gotten the TUV ... certification and BFE has reached to 99%Characteristic:1) Ear loop/Tie on2) beautiful ... available3) soft, comfortable, odorless, breathable4) no stimulus to human kin5) filter pollen, dust and bacteriaSpecification:1) Material ... CE,ISO9001 standards, very low resistance to breathing Active carbon face mask