A Sterile Field Generator is a type of UNSC technology that is standard and common in Human-constructed medical facilities. The method by which it creates the sterile field is unknown, but it is easily portable and able to be carried in a Field Medical Kit by one person. It is also fairly easy to deploy in active combat. Because of its portability, the Sterile Field Generator may use a form of radiation that is not to detrimental to humans in order to irradiate the nearby area and eliminate micro-organisms and bacteria that could cause infection.