Product Details 3 Layers (3 Ply) Surgical Mask Non-woven fabric, High-quality filter layer, and the skin-friendly contact layer 98% Bacterial Filtration Soft & Easy to breath Latex Free (Non contain rubber) Hypoallergenic (unlikely to cause an allergic reaction) Approved by NMRA/CE marking certified Product from ISO 13483:2016 certified manufacture Material Used for Product Inner & Outer Layer Polypropylene spun bond non-woven Middle Layer Polypropylene melt blown non-woven Ear Loops Elastics polyester spandex Nose Clip Plastic coated steel wire