Millions of individuals worldwide suffer from respiratory diseases such as asthma, COPD, and sleep apnea. These can impede breathing and hurt overall health. Even healthy individuals who exercise can benefit from monitoring their breathing, but traditional methods may be imprecise. This makes it difficult to identify and treat respiratory problems properly.  Many illnesses go undetected, and even when they are, patients frequently lack sufficient equipment to measure their breathing and determine how well they are functioning.