Brown sticky emissions coming out of my walls : r whatisthisthing Does Vaping Stain Walls? Do Air Purifiers Help with Vape Smoke? Smart Air Can vape smoke like geek bars leave stains on walls like this i don't even blow at my wall : r Vaping How to clean cigarette smoke stained walls? : r CleaningTips 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.