Q. What is 3-ply face mask used for?

Answer

The 3-ply face mask has three-layer protection whose innermost and outermost layer is made of non-woven fabric with middle layer made of melt blown non-woven fabric. The outer layer can repel body fluid, water and blood, the middle layer is designed to block bacteria, viruses, germs, etc., and other inner layer can absorb moisture, water and spit.