Advice 1: How to wear a gas mask

The mask – thing in the field needed. Yes, and the house (God forbid, of course) it could catch fire. In order not to suffocate you have to wear the mask and escape from the room. The problem is not how to wear a gas mask and how to wear it quickly. Words practice we can train you can not, but the theory should tell.
How to wear a gas mask
To know what the gas mask will have you fit, you need to know some parameters, namely, the horizontal and vertical circumference of the head. Horizontal girth measured along a closed line that goes on the front superciliary arcs to the side just above (2-3 cm) of the ear and behind the apex of the head. And the vertical girth can be determined by measuring the length of the vertical line passing through the chin, cheeks and crown. These measurements should be rounded so that the last digit was 0 or 5.
Now add both results and see which size mask you need:- Less than 1190 mm first size;
From 1190 to 1210 mm, the second size;
From 1215 to 1235 mm – third the size;
From 1240 to 1260 mm the fourth size;
From 1265 to 1285 mm – fifth size;
From 1290 to 1310 mm – six.
Now this is how to wear the gas mask to put your head in this saving "rubber bag with filter" you need to either after the signal "Chemical alarm" on command "Gases", or on its own initiative.
First tight-shut your eyes tight to avoid being corroded acrid smoke (who knows what happened there), and then remove the headgear and remove the mask from the special bags and grab the helmet-mask over the lower part so that the thumbs were on the outside, and the rest were inside.
Next you need to attach the lower part of the helmet-mask under the chin and pull his head sharp movement of your hands up. You will need to practice, so that after stretching the mask doesn't leave any creases. You can now do a full breath, open your eyes and resume breathing.
Given the fact that the operations described above, you have to spend blindly, should be long enough to train. Although it depends on the person and his degree of learning. Well with practice you can even come close to the army regulations put on the gas mask for about 7-10 seconds.

Advice 2: Who and how invented the gas mask

Masks of various designs are widely used for nearly two centuries: they are necessary experts in the conduct of hazardous work in different industries, as well as troops and civilians, which, under certain circumstances fall into place with a hazardous gas. Regardless of design features, all the masks serve the same purpose – they prevent the danger of poisoning.
Who and how invented the gas mask

The history of the gas mask

Still there is no consensus about who should be considered the inventor of the gas mask, because the prototypes of this device was known in the middle Ages. During the plague doctors used masks with long beaks. These beaks were filled with medicinal herbs. Medieval doctors believed that these masks prevent infection.

The world's first gas mask, according to historians, was created in 1847 by the American inventor Lewis Haslett. This unique apparatus was designed to prevent unwanted inhalation: felt filter delayed harmful substances, allowing the person to breathe without causing harm to his body. The gas mask, invented by Hasleton, allowed to consistently breathe through the mouth or through the nose, when the person was there, where the air present threat to the health of impurities.

In the future, inventors around the world worked on improving the filters to create more effective gas masks, which proved to be indispensable in certain circumstances. In most cases they were used for filtration of dust and other small particles to prevent them from entering the respiratory system. However, these gas masks could not protect the human body from the negative effects of gaseous toxins.

The first modern gas mask was invented in 1912 by black American Garrett Morgan. The device was designed to protect the engineers and firemen who are forced to work in toxic environment. In 1914 its construction of the gas mask was patented in America by German inventor Alexander Drucker.

The Invention Zelinsky

In 1915 Russian scientist Nikolay Zelinsky developed the first filtering coal gas mask, which in 1916 was adopted by the Entente troops. As the main sorbent material for the first time in the history of the used activated carbon.

First developed by Zelinsky gas masks in the amount of 200 thousand was made under pressure of the General staff in the spring of 1916. However, large shipments of coal gas mask was first produced in Russia only when the invention Zelinsky was implemented in Germany and England. And even after such a belated recognition of the Russian scientist had not paid a penny for his invention.
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