Like with any exposed/covered coil system there are risks of burning and fire. Do not leave unattended and pay special care handling equipment. People with long hair should keep it pulled back while using the equipment and care should be taken wearing loose/baggy clothing. Obviously keep away from pets and children. Common sense goes a long way here. If you are clumsy, prone to getting burned or just not confident handling high powered, high temperature equipment, this is NOT for you.
