The FDA and Juul are fighting over a vape ban, but the role of e cigarettes in the world of tobacco abuse is not clear cut All E Cigarettes Emit Harmful Chemicals, but Some Emit More Than Others Berkeley Lab Berkeley Lab News Center The FDA is allowing vaping brand Juul to keep its e cigarettes on the market. Studies from Juul show its e cigarettes are less harmful for adult smokers, who can benefit from switching completely Juul e cigarettes officially banned in the US The Independent