Medical and surgical equipment for the purpose of delivering anaesthesia and/or oxygen therapy; anaesthesia respiratory apparatus for medical purposes; anaesthesia respiratory apparatus for surgical purposes; anaesthetic and respiratory apparatus and instruments namely, respiratory gas mixing apparatus for medical use, respiratory gas blending apparatus for medical use, respiratory gas blowing apparatus for medical use, respiratory gas mixing apparatus for surgical use, respiratory gas blending apparatus for surgical use and respiratory gas blowing apparatus for surgical use; invasive and non-invasive ventilation apparatus and instruments for medical purposes; invasive and non-invasive ventilation apparatus and instruments for surgical purposes; breathing tubes used in the delivery of air and gases to and away from patients for medical purposes; breathing tubes used in the delivery of air and gases to and away from patients for surgical purposes; cannulae; tracheostomy tubes, breathing tubes and nasal tubes, tubing connectors and fittings for medical or surgical use; facial masks, oral masks, nasal masks, mouthpieces, all being for medical and surgical purposes; parts and fittings for all the aforementioned goods