The gas mask is an invention designed to protect people from toxins and toxic substances in the air. Gas masks normally cover the mouth and nose to protect people from airborne hazards, but most gas masks now protect sensitive tissues such as the eyes.
Gas masks are designed to protect the user from toxins and gas particles. Gas masks equipped with each filter protect against various toxins or groups of toxins. Gas masks do not protect from corrosive gases, so consumers must wear protective clothing. You can also buy gas masks via the web.
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The ancient Greeks were the first civilization to use gas masks; They used the properties of ordinary mushrooms as primitive gas masks.
In 9th century Persia, the Banu Musa brothers developed primitive gas masks, the main purpose of which was to protect people working in polluted wells.
Alexander von Humboldt, a Prussian mining engineer, developed a primitive breathing apparatus to help miners work in deep mines.
Louis P. Haslet, an American engineer, made a device in 1847 that looked like a modern gas mask. His invention used a spherical filter to filter dust from the air you breathe.
The device also has holes through which air is released back into the atmosphere. John Stenhouse, a Scottish chemist, built the original version of the device that Haslet designed.