SpiroSonic AIR is a research quality digital ultrasonic spirometer for pulmonary function diagnostic. Its user-friendly interface and low resistance to flow make it suitable for children, the elderly and sick patients with asthma and COPD. SpiroSonic AIR connects to the SpiroSonicApp on Android and iOS smart devices and Bluetooth-enabled computers. The intuitive user interface makes the SpiroSonicApp easy to use for practitioners and home users alike. It has the following application advantages: Smart connectivity – Connects to most Android smartphones and tablets. Long battery life – Over 10 hours of usage with a single charge. Home care ready – Intuitive usage with the SpiroSonicApp.