Lumis™ 150 VPAP ST-A Non- Invasive Ventilator Designed for non dependent patients with respiratory insufficiency or obstructive sleep apnea (OSA), Lumis 150 VPAP STA is non invasive ventilator with a set of fixed and adjustable alarms that deliver personalised ventilation. Featuring ResMed's unique volume assurance mode iVAPS (intelligent Volume Assured Pressure Support) Lumis 150 STA maintains target alveolar ventilation to suit each patient's changing needs. Together with an intelligent backup rate (iBR) and optional Auto EPAP, iVAPS continuously monitors ventilation and upper airway to help you further personalise therapy for your patients