When I've been vaping Virus the room smells like a pipe smoker has been there, not smoking a pipe, but the smell that clings to the smoker. My sister doesn't mind if I vape in her house, in fact has invited me to do so, but I vape Virus outside. She's told me I don't have to, but I know it mildly smells like tobacco to me and don't want to offend. Doesn't smell like cigarettes, though, for sure. Ugh!