gums after chewing tobacco Canadian Dental Association: Your Oral Health Dark Gums from Smoking: Causes

Actionable Insight: Conduction delivers rapid heating and dense vapor through direct contact

My research looks like maybe a 10mil vapor barrier, but should I also put down anything else

In summary, for equal cumulative arsenic exposure, more attention should be paid to protect population with higher concentration over shorter duration from CVD mortality

2011, Foulds J, Veldheer S, Berg A: Electronic cigarettes (e-cigs): views of aficionados and clinical/public health perspectives

From a botanical perspective, it produces thick, resinous smoke with a sharp, earthy scent due to high concentrations of thujone and camphor