Invasive Mechanical Ventilation General Part 3 MD Nexus Non invasive ventilators suitable for COPD ResMed Healthcare Basic Classification of Ventilator Modes Quick Summary Table Mode Control Trigger Typical Use VCV Volume Machine OR, ICU PCV Pressure Machine ARDS SIMV Volume Pressure Patient + Machine Weaning PSV Pressure Home ventilation consult CHEST Physician The LUISA ventilator's TTV VAPS AE mode offers settings designed to allow for a more comfortable, individualized therapy for patients. LUISA is the only home ventilator that offers an Auto Rate feature authorized to ship