Does Vaping Weed Smell? The Truth About Cannabis Vape Pens Indoors Even after a cigarette or vape is put out, toxic chemicals don't just disappear. They cling to furniture, carpets, walls, clothing, everything it touches. This residue is called thirdhand smoke. And it Do Vapes Set Off Smoke Alarms? [Clear Answer] Grey Haze UK Opinion We Still Don't Know How Safe Vaping Is The New York Times Does Vaping Weed Smell? (More Terpenes = Stronger Smell)