non-smoking
adjective
uk/ˌnɒnˈsməʊkɪŋ/ us WORKPLACE (also no-smoking)
used to describe a place where people are not allowed to smoke:
non-smoking area/section It's physically impossible to prevent cigarette smoke from drifting from the smoking area over to the non-smoking areas.
All our offices have been non-smoking for several years now.
used to describe a person who does not smoke:
Non-smoking colleagues often resent the fact that smokers are allowed to take time for a cigarette break outside.