payment terms ( 100-1000 units 100% advance payment ) ( 1000-10000 units 50% advance payment after contract and 50% before shipping ) thanks for your cooperation. BPAP Systems are Bi-level PAP (Bi-level Positive Airway Pressure) devices intended to provide non-invasive ventilation for patients with Obstructive Sleep Apnea (OSA) and Respiratory Insufficiency. They are intended for adult patients by prescription in the home or hospital/institutional environment. With its Target Tidal Volume function and other excellent comfort features and effective performance, it offers each patient personalized ventilation support. IPhAPPa:4 -30 hPa EPAP:4-25EPhAPPa:4-25hPa 3.5-inch 3.5-inch CPA Y-30T CPAP modeC:P4A-P20mhoPdae:4-20hPa P , S , T ,CSP/TA P , S , T , S /T