RESWELL APAP RVC820A with built in humidifier, is designed to comfortably treat patients with OSA (Obstructive Sleep Apnea) or hypoxemia syndrome that can be triggered by OSA. Elite EPS pressure variation algorithm with the auto pressure adjustments provides patients with smooth, comfortable pressure release that’s highly sensitive and automatically adjusting. The unit offers protection from dust and high water, compensation for leakage and altitude pressure to always maintain superior dynamic therapy pressure for easier breathing for the patient. The ramp function helps patient fall asleep faster, while the quiet operation ensures the patient remains asleep. The design is compact and ideal for travel. Data stores to the Micro SD (TF) card and PC software monitor/alerts of power failures, treatment periods, etc.