: apparatus for breathing purposes, namely, apparatus for artificial respiration; medical apparatus for diagnosing or treating respiratory conditions, namely, apparatus for the treatment of breathing difficulties; connections for use with breathing apparatus for artificial respiration, namely, medical ventilator tubing and tubing connectors; medical apparatus for diagnosing or treating respiratory conditions, namely, inserts for breathing apparatus for medical use; medical apparatus for diagnosing or treating respiratory conditions, namely, inserts for breathing masks for medical use; medical apparatus for diagnosing or treating respiratory conditions, namely, medical apparatus for assisted breathing; medical apparatus for diagnosing or treating respiratory conditions, namely, medical apparatus for training breathing techniques; portable breathing apparatus for artificial respiration; respiratory masks for artificial respiration, namely, protective breathing masks for artificial respiration; oxygen masks for medical use, namely, protective breathing masks for medical applications; surgical masks, namely, protective breathing masks for surgical applications; oxygen masks for medical use, namely, protective breathing masks made of non-woven materials for surgical applications; respiratory masks for medical purposes, namely, protective breathing masks made of non-woven materials for medical applications; self-contained breathing apparatus for artificial respiration; respiratory masks for artificial respiration, namely, surgical breathing masks; ventilator breathing apparatus for artificial respiration; medical ventilators, namely, ventilator breathing apparatus for artificial respiration; medical devices for treating sleep disorders, namely, continuous positive airway pressure nasal apparatus for the treatment of sleep apnea; medical masks, namely, oxygen masks for medical use; medical masks, namely, surgical masks