Medical apparatus and instruments; humidification apparatus for medical use; medical apparatus for breathing purposes; respiratory apparatus and instruments for medical purposes; medical apparatus for the treatment of breathing difficulties; apparatus and equipment for the treatment of respiratory diseases and conditions; medical apparatus and instruments for resuscitation; volume control meters and pressure control meters for use in relation to resuscitators; resuscitators; insufflators; medical apparatus and instruments delivering medical gases and humidification therapy to treat respiratory diseases and conditions; ventilator breathing apparatus for artificial respiration; ventilator exhalation valves for artificial respiration; ventilator filters (parts of medical apparatus); breathing tubes used in the delivery of air and gases to and away from patients; face masks, oral masks, nasal masks, nasal cannula, mouthpieces, nasal guards, facial guards, headgear, all being for medical purposes; breathing circuits, tracheostomy tubes, tracheal tubes, breathing tubes, nasal tubes, tubing connectors for medical use, tubing for medical use, nasal prongs, air filters (parts of medical apparatus), all being for medical purposes; hoses adapted for use with medical resuscitators, compressor modules being parts of resuscitators, all being for medical purposes; parts and fittings for all the aforementioned goods