Explosion protection means making sure that things that can explode, like chemicals or gases, don't explode and hurt anyone. It's like putting on a special suit to protect yourself from getting hurt when you are playing with fire.
There are different ways to protect against explosions. One way is to keep things that can explode away from other things that can cause them to explode. This could mean keeping gas tanks away from fire or sparks. Another way is to use special equipment, like a safety valve, that will release pressure if something gets too hot or too much pressure builds up.
In factories, workers often wear special clothes and helmets to protect them from explosions. Machines that can explode may also have special doors that will close if there is an explosion.
Overall, explosion protection is important to keep people safe and prevent dangerous accidents from happening.