Basking Ridge, N.J. ? Smokers are finding there is no room at the inn anymore.

From New York to California, small and mid-size hotels have gone smoke-free, cleaning, deodorizing and redecorating rooms once reserved for smokers and designating them nonsmoking.

One major reason is that fewer guests are requesting smoking rooms. But hotel managers point to other benefits: lower room maintenance costs and a marketing tool at a time when the business has been hurt by a sluggish economy.

“In all of our publications, we promote a smoke-free environment, and we’ve gotten calls because of it. Families with kids, it’s attractive to them. It reinforces cleanliness and safety,” said Chris Canavos, manager of the 98-room Howard Johnson’s in Williamsburg, Va., which went smoke-free during a renovation three years ago.

In New York City, which banned smoking in restaurants and bars over the summer, the 79-room Comfort Inn Midtown in the theater district just marked its second smoke-free year. For the first seven months of this year, the Comfort Inn’s occupancy rate has been a strong 96 percent.

Nonsmoker Leon Der Bogosian, a jewelry wholesaler from Los Angeles who frequently travels on business, stays at the Comfort Inn Midtown an average of eight times a year. Of the smoke-free policy, he said: “I’m bound to them because of that.”

“Clean air, that’s the main thing for me,” he said. When he recently stayed in Detroit, his nonsmoking room was on a floor with smoking rooms, and “from the elevator to the room, you could smell cigarettes.”

Vijay Dandapani, chief operating officer of Apple Core Hotels, which runs the Comfort Inn Midtown, said that on average, maids have to spend an extra five minutes cleaning a smoking room, including emptying the ashtrays and scrubbing the smoke residue that settles on everything.

In addition to New Jersey, New York and Virginia, smoke-free hotels can also be found in Delaware, California and Oklahoma, said Jeff Higley, editor in chief of the industry journal Hotel & Motel Management.