smoke from cigarettes Tobacco companies have made deadlier than ever Tobacco and the environment

Secondhand E-Cigarette (Vape) Aerosol E-cigarettes and other electronic smoking products heat a liquid that makes an aerosol

Inhaling is the delivery method of nicotine for cigarettes

Common signs a filter may be directional: One end has a cap, rim, or different texture One end looks more open than the other There are small markings or printed arrows The filter has a paper wrap that is tighter at one end If it is directional, the mouth end is the side designed for inhaling

Few studies of the relatively new devices are available, leaving consumers and regulators largely uninformed

Below, we explore the health concerns, risks, and harm-reduction strategies for both methods