***Cigarettes contain arsenic, formaldehyde, lead, hydrogen cyanide, nitrogen oxide, carbon monoxide, ammonia and 43 known carcinogens.
***In the early 1950s, the Kent brand of cigarettes used crocidolite asbestos as part of the filter, a known active carcinogen.
*** Urea, a chemical compound that is a major component in urine, is used to add “flavor” to cigarettes.
*** The ‘Cork Tip’ filter was originally invented in 1925 by Hungarian inventor Boris Aivaz, who patented the process of making the cigarette filter from crepe paper. All kinds of filters were tested, although ‘cork’ is unlikely to have been one of them.
*** In most countries around the world, the legal age for the purchase of tobacco products is now 18, raised from 16, while in Japan the age minimum is 20 years old.