The National Cancer Institute (NCI) released a study on the health effects of e-cigarettes on Thursday that found the devices may not pose a health risk to people.
The NCI also concluded that the devices have “no discernible health risks,” and the agency is not recommending any changes to existing laws on vaping products.
The study was published in the Journal of the American Medical Association.
The e-cigarette industry has come under fire for being overly cautious about safety and potentially harmful chemicals.
The devices come in various flavors and contain nicotine and other chemicals.
E-cigarette makers say they are intended to provide a safer alternative to smoking cigarettes.
The Centers for Disease Control and Prevention says there has been no data on the impact of e to cancer risk.
The NCI study also found the products have no detectable levels of carcinogens.
While the findings were welcomed by some scientists, they were not welcomed by the tobacco industry.