The RESmart GII E-20A-H-O is an Auto CPAP system from BMC’s GII series. It supports CPAP and Auto CPAP therapy and provides a pressure range of 4–20 cmH₂O. The E-20A-H-O has a 3.5-inch LCD display. BMC states that the GII series is intended for non-invasive ventilation for adult patients with obstructive sleep apnea and/or respiratory insufficiency, by prescription.