Which is NOT a regulator setting for correcting hypoxia?

The blue switch labeled "Altitude Control" is not a regulator setting used for correcting hypoxia. In the context of oxygen regulation, hypoxia is addressed through specific adjustments to oxygen supply. The other switches, such as the green switch for supplying oxygen, the white switch for dispensing 100% oxygen, and the red switch for emergency scenarios, all directly relate to providing or enhancing the oxygen supply necessary for mitigating the effects of hypoxia.

The function of the altitude control is not aimed at directly providing oxygen but rather adjusts the functioning of the oxygen system based on altitude changes. Therefore, it does not serve as a corrective mechanism for hypoxia in the way the other options do. Understanding these functions is crucial for effective management of oxygen systems in flight.