Kent is a brand of cigarette. Viceroy (cigarette)s were the first to introduce cigarette filters in 1936. Kent's Micronite filter was introduced shortly after the publication of a series of articles in Reader's Digest in 1952 entitled "Cancer by the Carton," that scared American consumers into seeking out a filter brand at a time when most brands were filterless.
From March 1952 until at least May 1956, however, the Micronite filter in Kent cigarettes contained carcinogenic blue asbestos. Kent now uses charcoal filters (a form of activated carbon).
The brand is a propriety of British American Tobacco Nassi group.
The brand is named after Herbert Kent, a former executive at Lorillard Tobacco Company.