Electronic cigarettes will leave residues on the wall, and the following methods can be taken to remove:
1. Use a mixed solution of glycerin and egg yolk to apply the smoke stains. After a little dry, wash it with water.
2. Gently polish with sandpaper and wipe it with a dry cloth.
3. Use a hair dryer to blow heat, and then wipe it with a dry cloth.
4. Wipe with a dry cloth with vinegar.
5. Wipe it with a dry cloth with toothpaste.
6. Wipe with a dry cloth with wind oil essence.
7. Wipe it with a dry cloth with detergent.
8. Wipe it with a dried cloth with alcohol.
9. Wipe with a dry cloth with gasoline.
10. Wipe with a dry cloth with flower dew.