How did the iron lung treat coal gas poisoning?
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The Iron lung was essentially a pressure chamber in which the the pressure could be increased quite a lot over atmospheric pressure as a means of forcing the absorbed coal gas back out. Its other common use was in treating polio, and also divers with the 'bends'. +++ Coal-gas is poisonous by being chiefly Carbon Monoxide, which is fast acting as it binds much more readily than the intended oxygen to the blood's haemoglobin. ....
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