New investigation cuts through the haze surrounding ‘smoke-free’ tobacco products

A class of alternative tobacco product called heat-not-burn is quickly gaining in popularity across the globe. The product manufacturers claim that these battery-operated devices produce a “clean,” nicotine-laden vapor that contains fewer irritant and carcinogenic chemicals than a conventional cigarette—and are therefore a less harmful option for tobacco users. New research from the Department of Energy’s Lawrence Berkeley National Laboratory (Berkeley Lab) shows that, although the chemical emissions from these devices are indeed lower than those produced by cigarettes, they are still high enough to raise concern.

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