Longman Dictionary of Contemporary English
Wiktionary
a. 1 Having restrictions on smoking. 2 Using no tobacco products. alt. 1 Having restrictions on smoking. 2 Using no tobacco products.
Usage examples of "non-smoking".
They boarded and took seats in an empty non-smoking car which smelled faintly of urine and old vomit.
He had seated himself by the window in a first-class non-smoking compartment, with his back to the engine because unfortunately another fellow was already in the other place, and jamming his trilby down on his head he sat with his fists deep in scarlet--lined gabardine and panicked.
Still farther along the corridor, in a first-class non-smoking compartment, Aline Peters looked through the window and thought of many things.
The yellow-fronted diesel snaked its slow way punctually through the points just north of the station, and two minutes later he was seated opposite a young couple in a non-smoking compartment.