Portable anesthesia machine. Advantages and characteristics: 1. Applicable scope: more than 5 kilograms of patients. 2. The mode of operation: pneumatic control, circulation closed, semi closed, half open. 3. Ventilator: high brightness, wide angle LED digital tube display data, can be timely feedback information for patients. 4. Integrated standard breathing circuit, good sealing performance, easy cleaning and disinfection. 5. Power support, AC power, automatically switch to standby power, can at least more than 60 minutes. 6. Environmental protection machine, precise structure, type design is exquisite. 7. Flowmeter: O2, N2O high precision four tube flowmeter, O2:0.1 L / min to 10 L / min, N2O:0.1 L / min to 10 L / min. 8. Flowmeter with oxygen - laughing gas linkage device, ensures that the oxygen output of not less than 20%. 9. Lack of oxygen, nitrous oxide automatic truncation. 10. Fast oxygen flow: 25 ~ 75L/min. 11. Air pressure: O2:0.3MPa ~ 0.5MPa, N2O:0.3MPa ~ 0.5MPa. Three, anesthesia respirator 12. Ventilation mode: auxiliary, control mode. 13. Tidal volume range: 50mL ~ 1500mL. 14. Respiratory frequency: 4 ~ 40bpm. 15. Suction call ratio: 1:1.5 ~ 1:3.0. 16. Inspiratory triggering pressure adjustment range: kPa ~ 1 kPa -1.0. 17. The maximum safe pressure: kPa ≤ 12.5. 18. Monitoring parameters: tidal volume, respiratory rate, airway pressure, respiratory ratio. 19. Alarm function: with sound and light alarm limit alarm, ventilation, airway pressure alarm, power failure alarm.