Does Vaping Leave Residue on Walls? And How to Prevent Ilookah The vapor from vaping devices leaves an oily residue on surfaces, making it hard to see out the window. This can be especially dangerous during the colder winter months, when the temperature Getting rid of heavy caked on Vape Reside? : r Detailing Vaping inside leaves film of 'thick, oily toxic slime all over your home that can seep through your skin'