The Philips Respironics BiPAP device is one of the most popular devices used to treat sleep-disordered breathing, specifically airway obstruction. The BiPAP device differs from the traditional CPAP in that it provides two levels of pressure (higher inhalation pressure and lower exhalation pressure), making it more comfortable for those who find it difficult to breathe. New device price: 11000 Selling for the highest offer.