The Vivatmo System enables asthma patients to monitor their health from home in a few simple steps. It includes the physician device Vivatmo pro, the patient device Vivatmo me and the Vivatmo app. Based on innovative sensor technology, the patient device measures the concentration of nitric oxide in the breath. The measurement data are transmitted wirelessly via Bluetooth to the patients’ smartphones and automatically saved there. Patients can then forward the data to the attending physician.