3-ply face mask with ear loops and integrated metal nose frame that adjusts to ensure a proper fit. Outer layer: PP non-woven. Middle filter layer: melt-blown PP non-woven. Inside layer: PP- non-woven. Filtration effectiveness specifications: BFE greater or equal to 95% Orders can only be placed in increments of 50. Not medical grade or a direct substitute for N-95, surgical, or procedural masks and should NOT be used as a replacement for conventional and approved PPE.