And in the US, an early attempt to provide dogs with a protective mask was made in 1926. During WWI, very rudimentary dog gas masks were made by several countries. Because of their many uses during wartime, gas masks were needed to protect dogs as well as their human counterparts. For the US military, the German Shepherd was typically the dog of choice, and was used for patrol duty, scouting, anti-sabotage duty, message delivery and even sometimes mine detection. And dogs in particular had various integral roles during the war. _During WWII many countries developed gas masks for animals. Due to the development of various weapons particularly biological and chemical weapons, multiple improvements are added continuously to the gas mask.The Development of the US Army Dog Gas Mask ![]() They improved on the design used during the First World War and made it more comfortable for individuals to wear it. ![]() ![]() The US Army Chemical Warfare Service worked to develop the modern gas masks. Since animals were commonly used during the First World War, gas masks were also designed to protect dogs and horses. Cluny MacPherson enhanced Haldane's device. John Scott Haldane improved on the filter used by the Allied troops at the time to develop the Black Veil Respirator. Immediately after the use of the gas, the Allied forces made use of cotton wool to protect them from the gas. When the Germans used poisonous gas in 1915, the gas masks became an essential component of the war. His invention paved the way for the creation of gas masks used during the First World War. In 1914, Garrett Morgan patented his 1912 invention, the Safety Hood and Smoke Protector, a device which allowed the user to breathe clean air along the floor and had moist sponges to improve the quality of inhaled air. John Stenhouse, a Scottish chemist, constructed early versions of the device following Haslett's design. The device also had a vent through which air was released back to the atmosphere. His invention worked through the use of a bulb-shaped filter to sieve dust from the inhaled air. He was the first person in the US to receive a patent for a gas mask. Haslett, an American engineer, created a device in 1847 that resembled modern-day gas masks. Alexander von Humboldt, a Prussian mining engineer, developed a primitive respirator to assist miners working in deep mines. ![]() In Persia, the Banu Musa brothers developed a primitive gas mask in the 9th century, and its primary purpose was to offer protection to people working in polluted wells. The Ancient Greeks were the first civilization to utilize gas mask they made use of the properties of the ordinary sponge as a primitive gas mask. Gas masks do not offer protection from corrosive gas which requires the user to wear protective clothing. Gas masks are fitted with filters each made to protect against a different toxin or group of toxins. Gas masks have evolved to protect the wearer from both gaseous and particulate toxins. Gas masks usually cover the mouth and the nose to protect the individual from airborne hazards, however, most gas masks now safeguard vulnerable tissues such as the eyes. The gas mask is an invention developed to protect individuals from toxins and poisonous substances that are in the air.
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