Clinically and scientifically tested system from Löwenstein Medical for the treatment of central or complex sleep apnea and Cheyne-Stokes periodic breathing. Equipped with high-end technology such as Anticyclic Servo-Ventilation (ASV) automatic trigger (WMtrak), automatic pressure regulation (auto TriLevel) and Prio S, the innovative management of backup frequency. Extremely quiet, with only 26 dB at 10 mbar.