You clean interior concrete floors by first sweeping or dust-mopping to remove loose dirt, then washing with a pH-neutral cleaner (never acid) and warm water using a microfiber mop or soft-bristle push broom. Rinse thoroughly, let the floor dry completely, and reapply sealer every 1–3 years, depending on traffic. This simple routine keeps polished, stained, or sealed concrete looking new, prevents dust, protects the surface from stains, and...