흡연실吸煙室 smoking room 간접흡연間接吸煙 second-hand smoking 금연禁煙 nonsmoking 금연석禁煙席 non-smoking seat 연기煙氣 smoke 흡연吸煙 smoking 흡연석吸煙席 smoking seat 흡연자吸煙者 smoker 끽연喫煙 smoking 매연煤煙 exhaust gas; sooty smoke 무연탄無煙炭 anthracite; hard coal 비흡연자非吸煙者 nonsmoker 연통煙筒 stovepipe 유연탄有煙炭 bituminous coal