As Koop (2004) observes, smokeless cigarettes appeared in the market in 1985 (p.616). He further argues that they are not that safe because they still contain carnogenic components such as tar and nicotine. To some extent, however, smokeless cigarettes or electron cigarettes have reduced risks of acquiring smoke related diseases. They do not emit smoke, which consists of incombustible gases whose effects are dire mostly causing respiratory diseases.
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Smokeless cigarettes appeared in the market in 1985
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