Denver Mayor Michael Hancock announced Friday, the nation's fifth busiest airport will join at least 250 other airports across the country and ban smoking indoors by 2018.
Right now, smoking is allowed at four smoking lounges in the airport; one each on the A, B, and C concourses, and one in the main Jeppesen Terminal.
The C Concourse will still contain a smoking lounge. The owner's lease will not expire until 2018 and the airport plans to honor his lease.
All other smoking lounges will begin to transition into other venues.
"The smoking rooms and ventilation systems don't protect people from the effects of second-hand smoke," Bronson Frick, associate director for Americans for Nonsmokers' Rights said. "This is about everyone's right to breathe clean-indoor air."
As of April, 27 of the top 35 U.S. airports are 100 percent smoke-free indoors, according to the American Non-Smokers Rights Foundation.
Chicago's O'Hare, Los Angeles International (LAX), and John F. Kennedy Airport are among the other major hubs that have banned smoking indoors, according to the foundation.
Dallas Fort-Worth, Atlanta's Hartsfield-Jackson, Memphis, Washington's Dulles, and Salt Lake City, are among the airports to still allow smoking.
An airport spokeswoman said the city council will vote next week on changes to lease agreements with owners of the smoking lounges.
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