Yes. A verity of GAs masks are being developed, depending on the mases from which the person wearing it is to be masked. These are used by soldiers and civilians in war zones, in factories and even to prevent effects of air pollution.
The use of masks goes back to the 1800s when inventors developed masks for the miners and soldiers. We still have our soldiers outfitted with gas masks.
Gas masks were gradually developed in the 1800s and the exact year you need is in the link below.
yes gas masks were used
Some countries were afraid of gas attacks being used against them, so masks that could protect the people were manufactured and spread.
Gas masks were developed to protect from the new gas warfare. Widespread use of trenches. Neither was terribly effective.
There are several company's selling and inventing new gas masks.
yes you did they were called mick mouse gas masks they were for children
You don't put gas into gas masks. They are used to keep out poisonous gases.
Not all gas masks are compatible with helmets, so some soldiers forgo helmets to wear their masks.
Separation of what? If it is the separation of East/West Germany then it is because gas masks were used in Gas Warfare, which was used in WWI and WWII.
The reason they wore gas masks is because they weren't sure weather the Nazi's would drop gas bombs as they did in WW1
yes they did!