Using this hand dryer is super easy. Just put your hands under it, and the infrared sensor will detect them and turn the dryer on automatically. After you're done drying your hands, take them out, and the dryer will turn off. Remember, you can adjust the sensitivity of the infrared sensor according to your needs. As for safety, the internally resetting thermal protection feature will keep the dryer from getting too hot. To maintain it, regularly clean the cover with a soft cloth. Don't use abrasive cleaners as they might damage the satin finish. Also, make sure the dryer is always connected to a 110 - 120 volt power source with a maximum of 10.4 amps to ensure proper operation.