TYPE - 1 (3-ply non-woven coloured masks) 3 Ply Non Woven Mask with Bacteria Filter Description: Non-Woven Pleated Face Mask Earloop Material : Polypropylene 20 Gsm + Meltblown filter 25gsm + Polypropylene 25gsm Here is spec: Size: 17.5 cm x 9.0 cm Color: Blue BFE 99% (Bacteria Filter Efficiency) Ultra-sonic welded earloops Spandex Elastic