3-ply defend, cleaner and safer, Ear-loop / tie-on, more choices, Nose clip contours to a variety ... and sizes. 1.Technical schedule Name: Surgical Non-woven Ear loop Face Mask Structure: 3 layers Box size:18.5X10.2X13 ... : TUV, CE, ISO5.Advantages3-ply defend, cleaner and safer, Ear-loop / tie-on, more choices, Nose clip contours to a variety ...