Fumed Surface of this Oak with its sharp, brushed and oiled wood grain is really looking to make a bold statement. If you are a fan of softer fabrics and use area rugs in your interiors, then the dark and visual weight of Swiss Hardwoods' - Fumed castle brown is perfect to bring about the balance to your space. At swiss Hardwoods we use Rubio Monocoat® Fire Retardant Oil as our surface coating. Plant based with no chemicals and is 100% VOC free, safe to use and great for the environment. With oiled floors you can feel the grain of the wood, sensual and karmic to the soul as opposed to the lacquered floors that are built up by layers of acrylic, essentially creating a barrier between you and your flooring.