After 23 years of cigarette smoke, these walls were coated in sticky yellow residue. A deep clean with TSP, followed by a shellac based primer, brought them back to life like new. Three deadly side effects of vaping' as author of world first study says it could be worse than smoking Does vaping indoors cause mould and stains on the wall? Cumnock Chronicle How to Clean Years of Cigarette Residue from Walls