Vape Blu by Juul advertisement on London Bus Stock Photo Alamy Have you seen our new notices yet? The message is clear don't vape or smoke when travelling on our buses, trains or trams. A London bus with advertising for vape brand Blu passes the head of a model as part of a giant ad for SEAT on the side of the IMAX cinema at Waterloo, MOTI Starts Healthy Vaping Tour with Vapouround Bus Can You Vape on a Bus? Public Transport Vaping Rules