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. It's Not Just Cigarettes: Vape Residue Sticks on Surfaces Too Thirdhand Smoke Resource Center Smoker House Deep Clean: 20 Years of Nicotine! Up in Smoke: The Hidden Dangers of Vaping Indoors Do Vapes Set Off Smoke Alarms? A Complete Guide for 2023 Vape Green Help clean ex smoker's walls : r CleaningTips