What is the recommended flow rate for a simple face mask?

For a simple face mask, the recommended flow rate is typically between 6 to 10 liters per minute. This range is crucial for ensuring that there is adequate oxygen delivery while also allowing for some room for exhaled air to escape through the mask's vents. A flow rate below 6 liters per minute risks the possibility of the patient rebreathing exhaled carbon dioxide and not receiving enough supplemental oxygen. Additionally, exceeding 10 liters per minute may result in discomfort and excessive airflow, leading to increased air wastage and potential difficulty for the patient in maintaining proper fit with the mask. Utilizing this specified range helps ensure optimal oxygen therapy while promoting patient comfort and effective use of the device.