ban banned cease smoking cigar cigarette disease forbidden health kills lungs nicotine no smoking prohibit quit quit smoking risk roadsign sign smoke smokers smoking stop tobacco area butt button buttons image inhale place poison press shape signage signs silhouette smoking-room symbol wood wooden cease cigarettes danger death die kill lung stop tobacco direction environment health risk no smoking in this area sign not allowed pollution prohibition unhealthy warning advisory avenue calle cityscape highway lane object road roads roadway smoke free smoke free facility street street scene streets no smoke appropriate behavior appropriate behaviour no smoking sign not permitted penalties permission denied prohibited roadsigns