Remove dry dust first, then clean the floor with a damp microfiber mop and a pH-neutral cleaner, usually pH 6 to 8, matched to the finish. Do not flood the floor. Avoid acidic, highly alkaline, and abrasive products. What is the safest way to clean interior concrete floors? The safest method is to remove loose grit first, then damp mop with a pH-neutral cleaner that matches the floor...