Untreated Hardwood FloorsThese reclaimed antique heart pine floors have a worn character that ups the appeal of this dining area; you wouldn't want to remove any of the marks, because that would take away part of the appeal.For maintenance of untreated wood floors, Feil recommends the following steps:First vacuum floors with a special soft-bristle, nonmarking brush to remove dirt sitting on the surface.Wet a microfiber pad with just a little bit of water — enough to dampen the pad, but not so much that it is soaking — and a cleanser made for hardwood surfaces.Wring out the microfiber pad. When you're cleaning, the floor should dry within a minute. If water pools up or stays on the floor longer than a minute, the pad should be wrung out more first.For tough stains: "You should really talk to your hardwood floor installer for care and maintenance issues, especially for major stains and chips that require professional help," says Feil. "But for weekly maintenance, surface scratches and worn floors can be renewed with the Bona Hardwood Refresher. Bona is nontoxic, nonflammable and doesn't leave a dull residue."Stay away from: All-purpose cleansers that contain ammonia and chlorine, as well as vacuum brushes that rotate. Rotating vacuum brushes scratch wood surfaces.