A mains electricity (AC-powered) device, which may include rechargeable batteries, intended to assist noninvasive ventilation (i.e., without use of an artificial airway) of a neonatal/infant patient via an attached nasal cannula or mask, using continuous positive airway pressure (CPAP) during spontaneous respiration. It is an electronic unit with controls, and may be used with compressed medical gas cylinders [e.g., air, oxygen (O2)] or include an O2 concentrator compartment; additional features (e.g., adjustable flow rates and O2 concentration, humidification) may be provided. It is primarily intended for use in a healthcare facility, especially in intensive and critical care settings.