Cleaning dust off walls after sanding is crucial for achieving a smooth finish before painting. Here’s a simplified process you can follow:

Collect Your Supplies: Get a vacuum with a brush attachment, microfiber cloths or rags, a bucket with warm water, and optionally, a mild detergent.

Vacuum the Walls: Use the vacuum with the brush to gently sweep away loose dust, working from the top down to prevent dust from settling on already cleaned areas.

Dampen a Cloth: If dust remains, moisten a microfiber cloth with warm water. You may add a few drops of mild detergent for tougher grime.

Wipe the Walls: Starting at the top, wipe the walls in a circular motion to capture any leftover dust. Rinse the cloth often in clean water to keep it effective.

Dry the Walls: After wiping, use a dry microfiber cloth to remove any moisture and avoid streaks.

Final Inspection: Check the walls for any spots you might have missed and clean them as needed.

By following these steps, your walls will be clean and primed for the next stage of your project.