What is the correct oxygen flow for a Partial Non-re-breathing Mask?

A Partial Non-Rebreathing Mask is designed to deliver a high concentration of oxygen to patients who require it. The correct flow rate for this type of mask is typically set at 6 to 15 liters per minute. At a flow rate of 6 liters per minute, the mask allows for the reservoir bag to remain partially inflated during inspiration and exhalation, which helps to maintain a high concentration of oxygen while also enabling some room air to enter.

This flow rate is crucial because insufficient flow can cause the patient to inhale more room air, diluting the oxygen concentration. Conversely, when the flow is adequately set at 6 liters per minute or higher, it ensures the mask provides effective oxygen delivery and minimizes the inhalation of carbon dioxide from the exhaled air.

Using a lower flow rate, such as 1 L/min or 2 L/min, does not provide the necessary oxygen concentration that a patient needing this type of mask typically requires. Similarly, while a flow rate of 10 L/min is within the acceptable range and can also be used, it is not the minimum required to achieve effective oxygenation.