Asphyxiant gas

Okay kiddo, have you ever blown up a balloon and then let all the air out really fast? That feeling you get when you run out of air in your lungs is called "holding your breath". It's not a very comfortable feeling, is it?

Now imagine if you were in a room with no air. That's what an asphyxiant gas is - a type of gas that takes away the air you need to breathe. If you breathe in too much of an asphyxiant gas, you won't have enough oxygen in your body and you could die.

Some examples of asphyxiant gases are nitrogen, carbon dioxide, and helium. Nitrogen and carbon dioxide are often used in industries like food storage, where they can help keep food fresh by displacing the air in the container. But if someone were to accidentally breathe in too much nitrogen or carbon dioxide, they could get really sick.

So remember, even though these gases can be helpful in some ways, they can also be dangerous if you breathe in too much. Always be careful around gases that you're not familiar with, and if you're not sure if it's safe to breathe, it's better to stay away.