People do not wear gas masks in hospitals. A gas mask is an item of military equipment intended to protect against poison gas such as chlorine, phosgene etc. In hospitals, people sometimes wear face masks to filter infectious agents out of the air. This is not harmful in any way.
A gas mask
gas is harmful because it can scar you for life and possibly sufficate you if you breathe in a lot of it.
That depends on what effect is desired; If you like to breathe, it is a useful gas; If you prefer that your car (or whatever) not be rusty (oxidized), then it is a harmful gas.
yes it is
No there is not. Ammonia is a harmful gas for body.
It removes harmful chemicals from the air you are breathing.
How it works is when you breathe in it keeps the gas and harmful things out and it keeps 80% toxins gas out
people
no, it blocks out as much gas as possible but tiny particles of harmful gasses can be exposed into the mask. Not enough of the gas will be let in to kill you though.
They wore gas masks and protective capes.
10% of the America
Gas mask was created in 1914.
A person wearing a gas mask.
I think it stopped gas getting in the mask...
Well nobody is certain, but people have taken them apart and didn't find anything. So I don't believe they have asbestos, but they may be toxic in some other way. DON'T USE the big coffee-can style masks because they do contain asbestos. But the standard mask should be fine. If you still don't want to use them, you can buy the Swiss 40mm thread gas mask filters.
A gas mask is used to filter out toxic agents in the air.
The main part of the gas mask is made out of rubber.