It isn't vegetable oil. Hydrocarbon oils would be dangerous to inhale potentially. This would be closer to ecigs than a regular hookah and hookah is safer than

It isn't vegetable oil. Hydrocarbon oils would be dangerous to inhale potentially. This would be closer to ecigs than a regular hookah and hookah is safer than cigarettes because you are vaporizing versus burning. Still this is probably a bit mroe dangerous than ecigs because you still have burning coals.