P2 Nasal PillowComes in Small, Medium & Large. The P2 Nasal Pillow Interface channels airflow non invasively to a patient from a positive airway pressure device such as a continuous positive airway pressure (CPAP) or bi level system. The interface is: To be used by adult patients (>66lb 30kg) for who positive airway pressure therapy has been prescribed. Intended for single patient re use in the home environment and multi patient re use in the hospital institutional