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. Smoker House Deep Clean: 20 Years of Nicotine! Best Smoke, Vape & Kratom Shop Smoker's Depot: How Long Vape Smell Lasts: Unveiling the Lingering Essence Ecigator How to Clean Nicotine Residue Off Walls and Eliminate Smoke Odor