4 Layer mask, Type IIR. > 98% BFE 50 pcs. per box. Weight: approx. 2.3 g Size: 17.5 cm x 9.5 cm The surgical face mask provides good protection against dust, splashes, splashing water and bacteria and is specially designed for medical use. Latex-free ear elastics. Nose clip in plastic coated wire that can be adapted to the nose back for better fit. Made in Europe