Once diagnosed with obstructive sleep apnea (OSA). a titration with either continuous positive airway pressure (CPAP) or automatic positive airway pressure (APAP) is planned to know the pressure required to abolish the airflow limitation during sleep. Majority of OSA patients are treated with such positive pressure therapy (PAP) devices. but it is not the only form of therapy of OSA. https://www.spidertattooz.com/Venture-Pouch/