The innovation is to build a ventilator which used for patients with breathing difficulties. It supplies the patient air and oxygen mix in a controlled manner. It uses a software to select breathing modes and allows user to set different parameters such as BPM(rate of breathing per minute), min & max pressure, volume of air. This machine uses different sensors to read data form the patient and sends to microprocessor to compare with set points then the software controls the valves to supply only the required amount of oxygen and air to the patient.