Propeller Health offers solutions, such as Bluetooth-connected inhaler sensors and patient apps, to help enhance compliance and treatment outcomes for respiratory patients, such as those with asthma or COPD. The system monitors how often patients take their medication and can send alerts to caregivers if the disease is considered poorly controlled. The app also provides education for patients on how best to use their inhaler and helps them to learn about their condition and how best to control it, based on personal data on how they use their own inhaler. The company recently announced $21.5 million in funding from a mix of pre-existing and new investors.Medgadget had the opportunity to talk to David Van Sickle, Co-founder and CEO, about the Propeller concept and the next steps for the company.