In the blow mold (or turbine) the ventilator in the present invention, discloses an air flow direction control device of the ventilator, increase the response speed of the intake and exhaust flow rate to be supplied to the patient to extend the patient coverage. Air flow direction control device of the ventilator according to the present invention, in the direction of the control device the air flow of the ventilator using a blow, and installed such that flow rate of the direction and the counter of the discharge air discharged through the blower, the intake and exhaust of the patient It includes when the flow rate and the air pressure control device equipped with a by-pass valve for discharging controlling the discharge air to the outside based on the pressure, the pneumatic control device is installed in a position opposite to the blower for increasing the inspiratory flow rate of the patient to recognize the intake condition of the patient based on the detection result of the by-pass valve and a flow rate sensor and a pressure sensor and a control section for accelerating the air flow rate of blow-by switching the opening and closing of the bypass valve. Accordingly, the present invention provides a respirator that can be moved to the blow mold of a simple structure, the pressure maintained was only possible, and the intake response is late as the mass flow rate, to difficult to precisely control the oxygen concentration in the intensive care unit corresponding to the air velocity according to the oxygen concentration is possible, precisely yirueojim, as well as to provide oxygen therapy functions, due to the oxygen concentration control can reduce the unnecessary consumption of oxygen, there is an effect capable of maintaining stable levels.본 발명에서 블로우형 (또는 터빈형)인공호흡기에서, 환자로 공급되는 유량의 흡배기의 응답속도를 높여 환자 적용범위 확대할 수 있도록 한 인공호흡기의 공기 유속 방향 제어 장치를 개시한다. 본 발명에 따른 인공호흡기의 공기 유속 방향 제어 장치는, 블로우를 이용한 인공 호흡기의 공기 유속 방향 제어 장치에 있어서, 상기 블로우를 통해 배출되는 토출공기의 유속 방향과 대향되도록 설치되고, 환자의 흡기
