... -ply defend, cleaner and safer, Ear-loop / tie-on, more choices, Nose clip contours to a variety of face shapes and sizes. 1 ... month/20ft container4. Certificate: TUV, CE, ISO5.Advantages3-ply defend, cleaner and safer, Ear-loop / tie-on, more choices, Nose clip ... contours to a variety of face shapes and sizes, Ultrasonically sealed soft stretched "latex free" ear-loops, safer and cleaner. face mask