Pocket mask

A pocket mask is like a superhero mask that helps keep someone alive when they can't breathe. When someone breathes, they take in oxygen and give off carbon dioxide. But if they're not able to breathe for themselves, someone else can help them with a pocket mask.

The pocket mask is a small, flat mask that fits snugly over someone's face. It has a tube coming out of the front that is used to blow air into the person's lungs. When someone is in trouble and can't breathe, you put the pocket mask over their nose and mouth and blow air into the tube. This helps get oxygen into their body and keeps them alive.

The pocket mask is used by people like doctors, nurses, and emergency responders. They keep it in their pocket so they can use it quickly when someone needs help. So, just like a superhero, the pocket mask is there to save the day and keep people alive!