PROVENT Therapy is a simple to use, disposable prescription treatment for obstructive sleep apnea (OSA). PROVENT Therapy uses the body's own breathing to create positive airway pressure, eliminating the need for often-ineffective surgery or discomfort due to the cumbersome tubing, mask and machine of CPAP (continuous positive airway pressure) therapy. The PROVENT Nasal Device is placed just inside the nostrils and is held in place by a discreet hypoallergenic adhesive.  It uses a novel, non-invasive valve design: on inhalation, the valve opens allowing nearly unobstructed airflow; on exhalation, the valve closes and air passing through the nose is directed through two small air channels. This creates expiratory positive airway pressure (EPAP), which helps maintain an open airway during sleep.