This electric floor sander is the perfect tool for quickly and efficiently removing imperfections, paint, stains and varnish from wooden floor boards. The floor sander rejuvenates your floor boards - leaving a perfect, clean surface for a new coat of varnish. As the sandpaper spins around on the drum, it removes the old, tired top layer of wood from the floorboards, unveiling beautifully fresh floorboards below. The wood dust is then sucked up into the dust bag, which should be replaced once full with a new bag. Before you use the sander, ensure that you remove any obstacles from the room, including furniture and fixtures. Also, remove any old floor covering and check for raised nails or screws, these will need to be well beneath the surface of the wood to avoid damaging the sandpaper or the machine. Ensure that you wear safety gloves, goggles and a dust mask whilst using the machine to reduce the risk of injury. Make sure you switch off and unplug the sander before you try to change the sandpaper or disposable dust bag. Don't try to burn a full/used dust bag, as it may explode. Also ensure you adjust the arm of the machine to suit your arm length, to avoid injury and ensure you are fully in control of the machine. You should also take regular breaks from using the machine to prevent developing injuries relating to HAVS.