Always test your hair product before using it. Check if it switches on and that all of its settings work without faltering. If the cord is starting to fray and show exposed wires, do not continue to use. At all costs, avoid using the hair dryer in places that are wet, like the bathroom. If it does come in contact with water, turn off the dryer immediately and unplug it to avoid accidents. When you are done using your hair dryer, switch it off, then pull out the plug. Lastly, when in use, keep the cord far from children or areas of high traffic.