There are 800 million people suffering from chronic asthma and obstructive pulmonary disease, billions are undiagnosed. The direct and indirect costs is in the hundreds of billions. Despite the size of the problem, there are no scalable solutions available to healthcare providers, payers and patients to catch the disease early. Eupnoos converts the smartphones into a clinical lung function testing and symptom monitoring, data interpretation and reporting device, making preventive care a reality