What is the oxygen concentration range delivered by a nonrebreather mask?

The nonrebreather mask is designed to deliver a high concentration of oxygen to patients who are experiencing respiratory distress or require significant levels of supplemental oxygen. This device provides an oxygen concentration range of approximately 80% to 100%. The mask is equipped with a reservoir bag that holds a supply of oxygen, which ensures that a patient inhales a mixture that is rich in oxygen while minimizing the amount of ambient air they also breathe in.

The effectiveness of the nonrebreather mask comes from its one-way valves, which prevent exhaled air from mixing with the oxygen supplied from the reservoir bag. As a result, when used properly, the mask can administer nearly pure oxygen, making it an ideal choice in emergency situations or for patients with severe hypoxia.

Understanding the capabilities of a nonrebreather mask is essential for medical personnel, as it influences decisions regarding which patients need immediate oxygen therapy and how to provide it effectively.