WHEN

facial masks for medical purposes; sanitary masks for medical purposes; face masks for surgical use for anti-bacterial protection; inserts for breathing masks for surgical use; protective masks for use by persons working in medicine; face masks for medical use for toxic substance protection; protective breathing masks made of non-woven materials for medical applications; face masks for medical use for anti-bacterial protection; protective face masks for medical use; inserts for breathing masks for medical use; respiratory masks for medical purposes