Product model : kn95-a FDA approved or non approved Size: 16.5(height) X 10.5 (width) CM Product Execution standard:gn2626-2006 Length or ear rope: 230mm+_2mm Product Structure: consists o half mask nose clip and hanging ear band Mask Composition: Total of 4 layer from the inside out are: spun-viscoe non-woven cloth, spun-viscose cloth, melt-sprayed cloth, hot rolled non woven cloth Show More