Cardiorespiratory Diagnostic Study

Inclusion Criteria:

* Age \> 18 years
* Healthy volunteer (with no previous or current chronic cardiorespiratory diagnoses)

One of the following cardiorespiratory diagnoses:

* COPD (GOLD 1, 2, 3 / A, B, C)\*
* Asthma (mild to moderate, not labelled as severe)\*
* Congestive cardiac failure\*
* Anaemia (with at least 50% of participants recruited having no history of chronic cardiorespiratory conditions)\*
* Bronchiectasis (acquired or genetic, e.g. cystic fibrosis or other primary ciliary dyskinesias)\*
* Lung cancer (including rare types e.g. mesothelioma)\*
* Interstitial Lung Disease (including pulmonary fibrosis pneumoconiosis, asbestosis, sarcoidosis, amyloidosis)\*
* Long COVID\*
* Upper airway obstruction disorder\*
* \[Active pulmonary hypertension\]
* \[Extrinsic Allergic Alveolitis\]
* \[Active pulmonary embolism\]

Exclusion Criteria:

* Participants who, in the opinion of the chief investigator, or their delegate, are unlikely to comply with the requirements of the study;
* Diagnosis of neuromuscular disorders;
* Concurrent diagnosis of cardiorespiratory conditions (other than those listed in the inclusion criteria above) that, in the opinion of the chief investigator, would impact the conduct of the study
* Participants who are acutely unwell, e.g. active exacerbation, very short of breath e.g. severe COPD (GOLD 4 / D) or end-stage IPF.
* Inability to give written informed consent