Medical and surgical equipment for the purpose of delivering humidification and/or oxygen therapy; anaesthesia respiratory apparatus; capnography apparatus, namely, breath gas analysers and monitors for medical use; humidification apparatus for medical purposes; anaesthetic and respiratory apparatus and instruments, namely, respiratory gas mixing apparatus for medical use; invasive and non-invasive medical ventilation apparatus and instruments; breathing tubes used in the delivery of air and gases to and away from patients; cannulae; nasal cannulae; cannula for respiratory purposes; collapsible cannula for respiratory purposes; breathing tubes and nasal tubes, tubing connectors and fittings for breathing tubes and nasal tubes, for medical or surgical use; respiratory masks for medical and surgical purposes; replacement and structural parts and replacement and structural fittings for all the aforementioned goods