Wood carvings are timeless art pieces, but they can develop a powdery surface over time due to environmental factors and improper care. To preserve their beauty, follow these effective methods:

1. Seal the Surface: Apply a high-quality wood sealant or wax to create a protective barrier against moisture and dust. Polyurethane or beeswax are excellent choices.

2. Control Humidity: Maintain a stable humidity level (40-60%) in the display area. Use a dehumidifier or humidifier to prevent wood from drying out or absorbing excess moisture.

3. Regular Cleaning: Dust carvings gently with a soft brush or microfiber cloth. Avoid harsh chemicals that can strip natural oils.

4. Avoid Direct Sunlight: UV rays can degrade wood fibers. Display carvings in shaded areas or use UV-protective glass for showcases.

5. Use Natural Oils: Periodically treat carvings with linseed or tung oil to nourish the wood and prevent powdery residue.

By implementing these steps, your wood carvings will remain vibrant and free from unsightly powdery surfaces for years to come.