1，Control the Environment
Keep paintings in a stable environment with humidity between 40%–55%.
Avoid hanging artworks in damp areas such as bathrooms, kitchens, or poorly ventilated basements.
2，Avoid Direct Contact with Walls
Leave a small gap between the painting and the wall to allow air circulation.
Use spacers or wall bumpers to reduce the risk of moisture transfer from walls.
3，Proper Framing and Backing
Use archival-quality framing materials with moisture barriers.
For unframed works, attach acid-free backing boards to protect the canvas from drafts and dampness.
4，Use Protective Coatings
Once the paint is fully cured (usually 6–12 months), apply a professional varnish layer to shield the surface from humidity.
Choose a removable conservation-grade varnish for future cleaning.
5，Regular Inspection and Cleaning
Inspect the painting every few months for signs of condensation, mold spots, or mildew odor.
If dust accumulates, gently brush it away with a soft, dry brush — never use water or cleaning agents.
6，Safe Storage
Store paintings upright in a dry, cool room with ventilation.
If stacking, place acid-free paper or cloth between paintings and avoid tight wrapping in plastic (which can trap moisture).
7，Emergency Response for Dampness
If a painting gets slightly damp, remove it from the humid area immediately.
Let it air dry naturally in a ventilated space — avoid direct heat or sunlight.
