| Model | 850 (Standard Model) |
| Display | 8.4 inch TFT display |
| Flowmeter Range | O2: 0.1-10L/min |
| N2O: 0.1-10L/min |
| Air: 0.1-10L/min |
| Ventilation Mode | IPPV, SIPPV, VCV, IMV, SIMV, MANUAL, Standby |
| Back-up Power Supply | At least 4 hours |
| Tidal Volume | Adjustable range: 10-1500ml |
| Display range: 0-2000ml |
| Respiratory Rate | 1-100bpm |
| Inspiratory/Expiratory (I:E) Ratio | 8:1-1:10 (capable of inverse ratio ventilation) |
| PEEP Range | 0-20cmH2O (electronically controlled) |
| Inspiratory Pressure Trigger Range | .-10-10cmH2O (electronically controlled) |
| SIGH | 1 sigh breath in every 80-120 breaths |
| Inhaled Oxygen Concentration Monitor | 21-100% |
| SIMV Rate | 1-20bpm |
| Inspiratory Plateau | 0-1 second |
| Vaporizer Concentration Ranges | 0-5% |
| Vaporizer Slots | Double PA-I type slots |