Which device is classified as a high-flow oxygen delivery device?

The non-rebreather mask is classified as a high-flow oxygen delivery device because it is designed to deliver a high concentration of oxygen to patients who are experiencing severe respiratory distress. This mask has a reservoir bag that allows for the accumulation of oxygen. When the patient inhales, they receive pure oxygen directly from the bag, which can provide a flow rate of 10 to 15 liters per minute or more. The design of the mask, which incorporates one-way valves to prevent exhaled air from mixing with the incoming oxygen, ensures that the patient receives the highest possible concentration of oxygen.

In contrast, other devices like the nasal cannula and simple face mask do not provide the same high flow rates or concentrations of oxygen. The nasal cannula is typically used for lower concentrations of oxygen (around 24-50%) and is suitable for less critical patients. The simple face mask can deliver higher concentrations than a nasal cannula, but it does not achieve the same concentration levels as the non-rebreather mask due to the possibility of exhaled air mixing with the oxygen. The Venturi mask, while also a high-flow device, is designed to deliver precise amounts of oxygen mixed with room air, making it more suitable for controlled oxygen delivery rather