To use this cooling fan, simply plug it into a power source and turn it on. You can adjust the speed according to your needs. When using, make sure it's placed on a flat and stable surface. Keep it away from water and other liquids. To maintain the fan, clean the blades regularly with a soft cloth to remove dust. If there's a lot of dust, you can use a small brush. Don't try to disassemble the fan by yourself. If you have any problems, contact our customer service.