An apparatus for providing a breathing gas to a user may include: a headgear unit and a control unit. The headgear unit may include: a breathing interface, an adjustable structure to fit the headgear unit to the user's head with the breathing interface disposed in relation to the user's facial area, a blower motor assembly attached to the adjustable structure, and a plenum coupled to the breathing interface and the blower motor assembly to form a breathing gas flow path. The control unit controlling operation of the blower motor assembly based on a desired pressure for the breathing gas. Operation of the blower motor assembly provides the breathing gas to a user airway at an adjustable positive pressure via the breathing gas flow path. Additional embodiments of the apparatus and various embodiments of a related method are also provided herein.
