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Colorimetric tubes are used to analyze a wide range of gases. This isn't new technology. Draeger made their first tubes in 1937. And while there certainly have been improvements and the range of testable gases has greatly expanded, the fundamental manner of determining chemical concentrations in the air has stayed basically the same. Draeger tubes contain a chemical color reagent that transforms colorless chemical compounds into colored, and produce consistent results of absorption dependi …

Back in 1889, the same year the Eiffel Tower became the tallest structure on earth and Montana was admitted into the Union, Germans J. Heinrich Dräger and Carl Adolf Gerling founded a company that today employs over 10,000 people and has perhaps saved the lives of even more. Few companies in the safety industry are steeped with the history and reputation as the German-based Draeger (or, Dräger, as it's known outside of the US), and its longevity is no accident. Draeger manufactures an assortm …