How does a gas mask work?

Answer 1

The primary function of a gas mask is to prevent toxic gases or poisonous material from entering the lungs and attacking the person. It does not provide its own oxygen supply, but filters out the particles. They can also protect the face from contact poisons or gases.

Answer 2

A gas mask works by creating a seal around the nose and mouth. This helps to prevent the wearer from inhaling toxic gases and other pollutants.

Answer 3

it was used for people who were surounded by gas and people can't breath gas so they had to use a special mask