Ventilation Holes in Cigarette Filters (IMAGE)

Virginia Tech

Ventilation Holes in Cigarette Filters

Caption

At issue are whether ventilation holes in the filters of cigarettes, which appear to change either smoke constituents, how cigarettes are smoked, or their addictive potential, have resulted in increased lung adenocarcinoma rates and other risks.

Credit

David Hungate/Virginia Tech Carilion Research Institute

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