Our N95 is suitable for filtering particles in the air, blocking droplets, blood, body fluids, secretions, etc. under medical working environment. It has 5 layers, two layers of non-woven fabric inside and outside two layers of melt blown cloth in the middle, one layer of hot-air cotton. As most customers' feedback, our N95 are good fit on faces, easy breathing, ear straps are comfortable and adjustable on nose clip.