The makers of e-cigarettes and e-hookahs market their products for several uses:

To use as a safer alternative to tobacco products. The makers claim their products do not contain the harmful chemicals found in regular cigarettes. They say this makes their products safer choices for those who already smoke and don't want to quit.

The makers claim their products do not contain the harmful chemicals found in regular cigarettes. They say this makes their products safer choices for those who already smoke and don't want to quit. To "smoke" without getting addicted. Consumers can choose cartridges that do not contain nicotine, the addictive substance found in tobacco.

Consumers can choose cartridges that do not contain nicotine, the addictive substance found in tobacco. To "smoke" in areas where smoking is banned. Since there are not yet bans against e-cigarettes in many places, these products allow smokers to "smoke" in smoke-free areas.

Since there are not yet bans against e-cigarettes in many places, these products allow smokers to "smoke" in smoke-free areas. To use as a tool to help you quit smoking. Some companies tout their products as a way to quit smoking. More studies are needed to prove this claim.

E-cigarettes have not been fully tested. So, it is not yet known if any of these claims are true.