It is a ventilation device for infant with novel structure and excellent performance,which adopts opening ventilation mode with high frequency ,small tidal volume and low airway pressure. Feature A. The tidal gas can be exported with constant pressure, contact current and accurately adjustable flow. B. Opening ventilation, which used opening intubation without casing bag, and get little resistance when expiratory is suitable for the ventilation management of infant . C. Evident effectiveness of ARDS treatment can be shown with inserting small tube and jetting oxygen through nasal vestibule, which is safe and doesn't cause pressure injury easily. D.Special CPAP tube for infant ventilation treatment are available . E.PEEP and humidifier volume can be adjusted accurately. F. Alarm system with sound and light when no oxygen, power failure or low airway positive pressure. G. Heated humidifier can be used for good effectiveness of humidifying. H. Inbuilt storage battery, it can be used while being charged and can be used for more than four hours after full charged . Main Technique Parameter : Frequency:10 150 breaths/min I/E ratio:1:1 1:3 and inverse ratio Driving Pressure :0 60KPa Humidifying rate :≥6ml/h Process Ventilation:T=10min, ProI: T1(150bpm):T2(35bpm)=7:3 ProII: T2(35bpm): T1(150bpm)=7:3 Storage Battery: 4Ah, 12V, Rechargeable SIGH:3breaths/min Alarm:Alarm with sound and light when lack of power,or the airway pressure is overy 1Kpa±0.2Kpa and alarm will last for 6 seconds when no oxygen. CPAP:0.1 0.8KPa PEEP:0.1 0.5KPa Oxygen Concentration :21%-90%(with air compressor) ; 40%-90%(with trolley) Ventilation Mode:HFJV(High Frequency Jet Ventilation);CPAP(Continuous positive airway pressure);HFJV+PEEP(Positive End-Expiratory Pressure), HFJV+SIGH(Sigh), Pro I and Pro II ventilation . Manual ventilation.