This video is a demonstration of how to use a non-rebreather mask to deliver oxygen to a patient. A non-rebreather mask is a special medical device that helps provide you with oxygen in emergencies. These masks help people who can still breathe on their own but need a lot of extra oxygen.
Non-rebreather masks are used to treat several conditions. Here’s what you need to know about how they can affect your health.
How Non-Rebreather Masks Work
A non-rebreather mask involves four important parts:
• The mask
• A reservoir bag
• 2 to 3 one-way valves
• Tubes to connect the reservoir bag to an oxygen tank
Oxygen flows from the tank into the reservoir bag. A one-way valve connects the reservoir bag to the mask. When a person breathes in, oxygen moves from the bag into the mask.
One-way valves. When someone exhales, the first one-way valve prevents their breath from returning to the reservoir bag. Instead, the exhale pushes air through one or two additional one-way valves on the outside of the mask. These valves also prevent the person from breathing in air from the rest of the room.
Usage. The non-rebreather mask is utilized for patients with physical trauma, chronic airway limitation, cluster headache, smoke inhalation, and carbon monoxide poisoning, or any other patients who require high-concentration oxygen, but do not require breathing assistance.

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