When do diluter demand oxygen systems supply oxygen to the user?

Diluter demand oxygen systems are designed to deliver oxygen to the user only when they are inhaling. This mechanism operates based on the user's breathing pattern, ensuring that oxygen is provided only during the inhalation phase.

When the user breathes in, a valve opens that allows oxygen to flow into the mask, mixing with the ambient air to achieve the desired concentration of oxygen based on the altitude and individual needs. This on-demand delivery is efficient, preventing excess oxygen from being wasted and allowing for the most effective use of the oxygen supply.

In contrast, constant supply systems would waste oxygen at altitudes where it may not be needed continuously, and simply relying on altitude or stress situations would not accommodate the varying oxygen needs of the user. Therefore, the operation of the diluter demand system is specifically tailored to respond directly to the user's breathing, making it an effective and resource-efficient approach.