For example, a quote from an online e-cig marketer:

[pnwmom]

http://www.nytimes.com/2014/03/05/business/e-cigarettes-under-aliases-elude-the-authorities.html?action=click&module=Search&region=searchResults%230&version=&url=http%3A%2F%2Fquery.nytimes.com%2Fsearch%2Fsitesearch%2F%3Faction%3Dclick%26region%3DMasthead%26pgtype%3DHomepage%26module%3DSearchSubmit%26contentCollection%3DHomepage%26t%3Dqry691%23%2Fe-cig

Marketers of e-hookahs and hookah pens say they are not trying to reach young people. But they do say that they want to reach an audience that wants no part of e-cigarettes and that their customers prefer the association with traditional hookahs, or water pipes.

“The technology and hardware is the same,” said Adam Querbach, head of sales and marketing for Romman Inc. of Austin, Tex., which operates several websites that sell hookahs as well as e-cigarettes and e-hookahs. “A lot of the difference is branding.”

SNIP

Indeed, public health officials warn that they may be misjudging the use of such products — whatever they are called — partly because of semantics. A survey by the Centers for Disease Control and Prevention found that 10 percent of high school students nationwide said that they had tried e-cigarettes in 2012, double the year before. But the C.D.C. conceded it might have asked the wrong question: Many young people say they have not and will not use an e-cigarette but do say they have tried hookah pens, e-hookahs or vaping pens.

The C.D.C. is sending a tobacco-use survey to 20,000 students nationwide that asks about e-cigarette experimentation but does not identify the devices by other names. The state of California, through a nonprofit partner called WestEd, is asking virtually the same question of 400,000 students.

Brian King, senior adviser to the Office on Smoking and Health at the C.D.C., said the agency was aware of the language problem. “The use of hookah pens could lead us to underestimate overall use of nicotine-delivery devices,” he said.