Kevin Burns, managing director of the Juul Steam Company, has resigned amid growing concerns about the health risks of steam and the criticism of its commercialization.
The company has announced it will withdraw all US advertising.
KC Crosthwaite, former Chief Growth Officer of tobacco giant Altria, will replace Mr Burns immediately, Juul said.
Juul is 35% owned by Altria and has been accused of doing so in the past to have vaping devices targeted at children.
Mr. Burns said, "Since I came to Juul Labs, I have worked and helped to turn a small business into a global business, and a few weeks ago I decided that this was the right one for me Time to Resign. "
The firm was very popular with investors, submitting documents in August stating that $ 325 million was spent on financing.
However, there is growing concern about the health risks of vapors and the effects of its commercialization.
The US Department of Health On September 9, the US Food and Drug Administration announced that it had issued a warning letter to Juul regarding its marketing activities, including "Presenting to Adolescents at a School" Activities "aimed at students, tribes, health insurers and employers. "