noun
total smoking ban; completely non-smoking
Used especially on signage to indicate that smoking is prohibited in all areas of a facility or premises.
このレストランは全面禁煙です。
This restaurant is completely non-smoking.
駅構内は全面禁煙になった。
The station premises became entirely smoke-free.
Compound of 全面 (all sides, entire surface) and 禁煙 (smoking prohibition).