Cleaning of oil paintings
1. Buy a lump of white bread to dry or sun-dry, of course, dry Shandong steamed buns or northeastern steamed buns (except for Wangzai small steamed buns). Make pieces or pieces according to the relevant size of your collection.
2. Delineate an area and operate on a white surface that is large enough relative to the work to be cleaned.
3. Cut out the middle part of the dried bread or dried steamed bun (remember that it is dry, not rotten), gently pat or brush on the screen, and repeat. Bread buns can absorb dust and other debris from the screen.
4. Use a soft brush, similar to the one you paint on the wall (softer, softer than a child's toothbrush), and gently put the bread buns on the screen.
5. Finally, make sure that the cleanup work is completed intact, and place the collection securely on a wall or base with good light transmission conditions to ensure that the oil painting can be displayed optimally.

Maintenance of oil paintings
1. Oil paintings should not be placed in damp and moldy places. If it cannot be placed in the basement, next to the bathroom, etc.
2. When rolling the oil painting, be sure to roll the oil painting outward, so that it is appropriate to roll it into a thigh-shaped thick cylinder.
3. Oil painting is the most forbidden to be hard, beware of being poked by some stick-like items. If you accidentally touch a small hard injury, you can use warm water to smooth the surface of the oil painting.