"This is called a vaporizer. There's no combustion. There's no carcinogens," Hunter said after exhaling a white cloud. "Smoking has gone down as the use of vaporizers has gone up.

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"There is no burning. There is nothing noxious about this whatsoever," Hunter said. "This has helped thousands of people quit smoking. It's helped me quit smoking."

The amendment to legislation setting Federal Aviation Administration policy was adopted by the Transportation and Infrastructure Committee by a 33-26 vote.

"The next thing we're going to do is we're going to ban hot air, we're going to ban bad breath and we're going to ban body odor," Shuster joked. "Do you think we're really going to go there?"