... concentration*Information display: LCD for Type: OT-Star, OT-Elite, and Color-LCD for Type OT-Pro.* Oxygen concentration ... for Type: OT-Star, OT-Elite.*Realtime oxygen concentration display for Type: OT-Elite, OT-Pro.*Air outlet permits nebulizer ... (optional)*Intelligent fault diagonis.Specification* Model OT-Star, OT-Elite, OT-ProOperating System Timed Cycle/Rapid Pressure SwingPower Consumption (W ...