Get the facts on COPD with this 100%-accurate animated video. Part of Focus Apps' Understanding Disease: Respiratory Diseases series, the COPD app describes the respiratory system, its function, and the effects of COPD. Chronic obstruction of airflow through the airways and out of the lungs is often irreversible. Those with this condition suffer from chronic bronchitis or emphysema described as COPD. Understand how COPD is diagnosed and its causes, complications, and self-care and treatment options.