anti-smoker; person who dislikes smoking
Refers to someone who actively dislikes or opposes smoking, not merely a non-smoker. Often used in contexts of smoking bans or etiquette.
See also: 嫌煙家
He's an anti-smoker, so he doesn't go near smoking areas.
The voices of anti-smokers grew stronger, and smoking in public places was restricted.
Means 'non-smoker' (someone who does not smoke), without the active dislike or opposition implied by 嫌煙者.
Compound of 嫌 (dislike) + 煙 (smoke) + 者 (person). A relatively modern coinage reflecting anti-smoking sentiment.