Features:
* Vital Capacity (VC/SVC): VC, IC, ERV, IRV, EVC, IVC, TV, VE, RR, tI, tE, TV/tI,tI/ttot
* Maximum Ventilatory Volume (MVV): MVV
* Real-Time Display Respiration Waveform: Flow-Volume Loop and Volume-Time Curve Chart
* 7* Color LCD Touch Screen, Buttons can be operated along with Touch Screen