Topic summary
Deodorizer
Extracted from the Wikipedia article Air freshener.
History
In 1939, Air Wick launched in the United States, initially producing liquid air fresheners in a variety of fragrances, which worked by evaporation with the help of a wick. The products claimed to kill odors, not just mask them, by using chlorophyll. As early as 1953, scientists were questioning whether chlorophyll, at the time popular as a body deodorizer or for use on wounds, really acted as a space deodorizer. From 1947 to 1951, the company sold 7 million dollars' worth of these and other types of air fresheners.