A poll of more than 4,600 Americans found that 47 percent think electronic cigarettes should be legally available for smokers, but more than half also believe the devices should be regulated by the U.S. Food and Drug Administration (FDA).

Reuters reported Sept. 28 that about half of those polled had heard of e-cigarettes. Roughly one-third of respondents said the devices, which vaporize nicotine and produce no smoke, should be permitted in places where smoking is banned, but 46 percent said they should not.

Men, single people and those ages 18-29 were most receptive towards e-cigarettes. The poll was conducted by Zogby International.