Chronic obstructive pulmonary disease is a potentially fatal chronic disease. Patients depend on inhalation on a daily basis to manage the condition. The Ease Smart inhaler aims to rethink inhalation drug treatments and make it more efficient. The device is designed to help patients achieve higher inhalation efficiency; it provides replaceable drug units that can adapt to changing treatment plans; and it monitors inhalation behaviour for clearer disease management and better communication between patients and physicians.