PExA develops methods for collection of biomarkers. The company provides collection and measuring instruments, consumables, and other analytical services for the examination of patients’ lungs. The products are primarily used in the treatment of airway diseases, such as asthma and chronic obstructive pulmonary disease, COPD. In addition to the main business, also service and support is offered. The company was founded in 2014 and is based in Gothenburg.