when did filter cigarettes first come out Kent cigarettes' introduction of the Micronite in 1952 Cigarette - Wikipedia
Cigarette Wikipedia Protects Your Health img1939 Who Made That Cigarette Filter? The New York Times In 1952, Kent released Micronite cigarettes with filters made of blue asbestos. Marketed as kind on the lungs and a taste improvement, the so called safety feature backfired, causing twice as much cancer Asbestos Cigarette Filters: Kent Micronite Cigarettes & Lawsuits
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