Of these, NNK (nicotine-derived nitrosamine ketone) and NNN (nitrosonornicotine) are considered to have the highest risk for carcinogenic action
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The user lights the carbon tip, which heats the dried tobacco inside to a temperature that does not cause the product to create ash or burn down in size
With the advent of replaceable coils, changing the resistance of the tank was as simple as swapping the coils
Edwards, R., Augustson, E