Longman Dictionary of Contemporary English
smoke-free
adjective
COLLOCATIONS FROM OTHER ENTRIES
a nuclear-free/smoke-free etc zone (=where nuclear weapons, smoking etc is not allowed)
▪ The county council offices are a smoke-free zone.
EXAMPLES FROM OTHER ENTRIES
▪ Most workers prefer a smoke-free environment at the office.
▪ We are calling for all airlines to be smoke-free.
EXAMPLES FROM CORPUS
▪ In 1987 he joined the national office to run projects on smoke-free air in public places.
▪ New laws to create a smoke-free environment at work and in public places.
▪ The freedom of the individual is important; everyone is entitled to a smoke-free environment.
▪ Theirs had always been a smoke-free household.
Wiktionary
smoke-free
a. In which smoking is not allowed.
WordNet
smoke-free
adj. free of smoke; "smoke-free offices and restaurants"
Usage examples of "smoke-free".
Psychologist Liz Gordon was chewing nicotine gum in the smoke-free room, nervously twirling a lock of short brown hair, sipping her dark coffee with three sugars and reading the new week's supermarket tabloids.