10 Medical apparatus and instruments for treating cancer, celiac disease, tuberculosis, asthma, inflammatory bowel disease, fatty liver disease; diagnostic apparatus for the detection of disease biomarkers; medical apparatus for dosage, measuring and monitoring, namely, drug delivery devices and systems; medical apparatus, namely, breath gas analysers for medical diagnostics; medical apparatus, namely, patient medical monitors for monitoring lung function; medical apparatus, namely, spirometers; medical instruments for measuring and displaying lung capacity; chemical detection systems and apparatus for medical purposes consisting of analysers and sampling equipment for use to collect and analyse liquid, solid and gas samples; medical imaging apparatus; medical devices used for the collection, recording, concentration and analysis of volatile organic compounds in human breath; medical testing kits for detection of cancer, celiac disease, tuberculosis, asthma, inflammatory bowel disease, fatty liver disease for home use; testing apparatus for medical purposes, namely, breath detectors for use to detect disease biomarkers; detectors for medical purposes; sensors for medical purposes, namely, respiratory sensors; medical products, namely, biofeedback sensors; patient monitoring sensors and alarms; parts and fittings for all of the aforesaid