nCPAP is mainly used in neonatology and pediatrics departments. It can provide safe and controllable respiratory support treatment for newborns & infants. It helps to reduce complications and effectively reverse the development of children's conditions. nCPAP can maintain continuous positive airway pressure, increase functional residual capacity, expand alveoli, reduces intrapulmonary shunt, improve ventilation/blood flow ratio and as result, improves oxygenation. At the same time it can also reduce the collapse of the upper airway and the small airway, reduce the airway resistance and reduces the extra work for breathing.