Gas mask

A gas mask is a special mask that people wear over their faces to protect themselves from breathing in bad air. It's like a superhero mask, but instead of making you look cool, it makes you safe.

The gas mask has special filters called canisters that clean the air before you breathe it. The canisters work like a superhero's forcefield, blocking all the bad stuff in the air from getting into your body.

When you wear a gas mask, it's like putting on a special suit. The mask covers your nose and mouth tightly so that no air can get in or out except through the special filters. It's like putting on a helmet before going on a bike ride, but instead of protecting your head, it protects your lungs.

People wear gas masks when they are in really bad situations where they might breathe in dangerous things like chemicals or harmful gases. It's like wearing a seatbelt in a car to protect yourself from getting hurt in case of a crash.

So, to sum it up, a gas mask is like a superhero mask that protects you from breathing in bad air by filtering it first, so you can stay safe and healthy.