Apparatus for artificial respiration; connections for use with breathing apparatus for artificial respiration, namely, structural parts of apparatus for artificial respiration; protective face masks for medical use; face masks for surgical use; filters for inhalers being structural parts of inhalers for medical use; filters for medical purposes, namely, nasal filters for medical purposes; high filter surgical masks; inserts for breathing apparatus for medical use, namely, respiratory masks for medical purposes; inserts for breathing apparatus for surgical use, namely, anesthesia masks; inserts for breathing masks for medical use, namely, air filters for medical ventilators; inserts for breathing masks for surgical use, namely, air filters for medical ventilators; masks for use by medical personnel; medical masks, namely, sanitary masks for medical purposes; oxygen masks for medical purposes; oxygen masks for medical use; portable breathing apparatus for artificial respiration; protective breathing masks for artificial respiration, namely, respiratory masks for medical purposes; protective breathing masks for medical applications, namely, respiratory masks for medical purposes; protective breathing masks for surgical applications, namely, respiratory masks for medical purposes; protective breathing masks made of non-woven materials for medical applications, namely, respiratory masks for medical purposes; protective breathing masks made of non-woven materials for surgical applications, namely, respiratory masks for medical purposes; protective covers for the mouth, namely, face covers being sanitary masks for protection against viral infection; protective face masks for dental use; protective face masks for medical use; protective masks for use by persons working in medicine, namely, sanitary masks for medical purposes; protective masks for use by persons working in the dentistry, namely, sanitary masks for dental use; protective surgical masks for use by surgeons during operations; protective mouth masks for dental use, namely, sanitary masks for dental use; protective mouth masks for medical use, namely, protective face masks for medical use; protective mouth masks for veterinary use, namely, protective face masks for medical use; protective nose masks for dental use, namely, sanitary masks for dental use; protective nose masks for medical use, namely, sanitary masks for medical purposes; protective nose masks for veterinary use, namely, sanitary masks for medical purposes; respiratory masks for artificial respiration; respiratory masks for medical purposes; sanitary masks for medical purposes; sanitary masks for medical use; surgeons' masks, namely, surgical masks; surgical breathing masks; surgical filter masks; surgical masks