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CHICAGO, IL - SEPTEMBER 13: Electronic cigarettes and pods by Juul, the nation's largest maker of vaping products, are offered for sale at the Smoke Depot on September 13, 2018 in Chicago, Illinois. The Food and Drug Administration (FDA) has ordered e-cigarette product makers to devise a plan to keep their devices away from minors, declaring use by teens has reached an 'epidemic proportion'. (Photo by Scott Olson/Getty Images)

CHICAGO, IL - SEPTEMBER 13:  Electronic cigarettes and pods by Juul, the nation's largest maker of vaping products, are offered for sale at the Smoke Depot on September 13, 2018 in Chicago, Illinois. The Food and Drug Administration (FDA) has ordered e-cigarette product makers to devise a plan to keep their devices away from minors, declaring use by teens has reached an 'epidemic proportion'.  (Photo by Scott Olson/Getty Images)

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A person smokes a Juul Labs Inc. e-cigarette in this arranged photograph taken in the Brooklyn Borough of New York, U.S., on Sunday July 8, 2018. Juul Labs, the maker of the popular e-cigarette brand that has recently come under fire from health officials over its popularity with young adults, plans to introduce a line of lower-nicotine pods. The company will begin to sell pods with a 3-percent nicotine concentration in its mint and Virginia tobacco flavors later this year, according to a statement Thursday. Photographer: Gabby Jones/Bloomberg via Getty Images

A person smokes a Juul Labs Inc. e-cigarette in this arranged photograph taken in the Brooklyn Borough of New York, U.S., on Sunday July 8, 2018. Juul Labs, the maker of the popular e-cigarette brand that has recently come under fire from health officials over its popularity with young adults, plans to introduce a line of lower-nicotine pods. The company will begin to sell pods with a 3-percent nicotine concentration in its mint and Virginia tobacco flavors later this year, according to a statement Thursday. Photographer: Gabby Jones/Bloomberg via Getty Images

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A Juul Labs Inc. e-cigarette and flavored pod are arranged for a photograph in the Brooklyn Borough of New York, U.S., on Sunday July 8, 2018. Juul Labs, the maker of the popular e-cigarette brand that has recently come under fire from health officials over its popularity with young adults, plans to introduce a line of lower-nicotine pods. The company will begin to sell pods with a 3-percent nicotine concentration in its mint and Virginia tobacco flavors later this year, according to a statement Thursday. Photographer: Gabby Jones/Bloomberg via Getty Images

A Juul Labs Inc. e-cigarette and flavored pod are arranged for a photograph in the Brooklyn Borough of New York, U.S., on Sunday July 8, 2018. Juul Labs, the maker of the popular e-cigarette brand that has recently come under fire from health officials over its popularity with young adults, plans to introduce a line of lower-nicotine pods. The company will begin to sell pods with a 3-percent nicotine concentration in its mint and Virginia tobacco flavors later this year, according to a statement Thursday. Photographer: Gabby Jones/Bloomberg via Getty Images

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A person views a mobile device while holding a Juul Labs Inc. e-cigarette in this arranged photograph taken in the Brooklyn Borough of New York, U.S., on Sunday July 8, 2018. Juul Labs, the maker of the popular e-cigarette brand that has recently come under fire from health officials over its popularity with young adults, plans to introduce a line of lower-nicotine pods. The company will begin to sell pods with a 3-percent nicotine concentration in its mint and Virginia tobacco flavors later this year, according to a statement Thursday. Photographer: Gabby Jones/Bloomberg via Getty Images

A person views a mobile device while holding a Juul Labs Inc. e-cigarette in this arranged photograph taken in the Brooklyn Borough of New York, U.S., on Sunday July 8, 2018. Juul Labs, the maker of the popular e-cigarette brand that has recently come under fire from health officials over its popularity with young adults, plans to introduce a line of lower-nicotine pods. The company will begin to sell pods with a 3-percent nicotine concentration in its mint and Virginia tobacco flavors later this year, according to a statement Thursday. Photographer: Gabby Jones/Bloomberg via Getty Images

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A Juul Labs Inc. e-cigarette and flavored pods are arranged for a photograph in the Brooklyn Borough of New York, U.S., on Sunday July 8, 2018. Juul Labs, the maker of the popular e-cigarette brand that has recently come under fire from health officials over its popularity with young adults, plans to introduce a line of lower-nicotine pods. The company will begin to sell pods with a 3-percent nicotine concentration in its mint and Virginia tobacco flavors later this year, according to a statement Thursday. Photographer: Gabby Jones/Bloomberg via Getty Images

A Juul Labs Inc. e-cigarette and flavored pods are arranged for a photograph in the Brooklyn Borough of New York, U.S., on Sunday July 8, 2018. Juul Labs, the maker of the popular e-cigarette brand that has recently come under fire from health officials over its popularity with young adults, plans to introduce a line of lower-nicotine pods. The company will begin to sell pods with a 3-percent nicotine concentration in its mint and Virginia tobacco flavors later this year, according to a statement Thursday. Photographer: Gabby Jones/Bloomberg via Getty Images