What does the smell of stale tobacco smoke mean? Thirdhand Smoke Resource Center What Does a Vape Smell Like? Do Delta 8 Carts Smell? Do Cannabis Vapes Smell? What You Need to Know About Vaping How to Eliminate Vape Smell Indoors: Proven Strategies for Fresh, Clea Airdog USA Sitting somewhere when a cloud of cotton candy vapor washes over you? If you can smell the sweet scent of a vape, that's not a great sign.