FDA approved 3ply medical mask. The mask is composed of three layers of non-woven fabric with one anti bacteria layer. The front and back two layers are composed of polypropylene spun-bond non-woven, and the middle layer is spray melted non-woven fabric, equipped with nose barrier of metal material. The mask has comfortable 65/35 Rayon fabric ear loops. Capacity: up to 500,000 masks / day
