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are e cigarettes harmful to your lungs E-Cigarettes and Vaping Why Are E-Cigarettes Safer Than
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Lighters today are seeing a resurgence in popularity

An internal memo from asbestos company Union Carbides associate medical director shows that, even in the 1970s, industry experts knew how dangerous it was to combine asbestos and other toxins from cigarettes

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doi:10.2105/AJPH.82.1.94

No added chemicals doesnt mean chemical-free
An estimated 20.9 percent of American adults, or 45.1 million people, were current smokers in 2005 (CDC 2006b)
