An autoclave is a powerful heated machine used for chemical reactions using high pressure and temperatures, such as steam sterilization. Autoclave operators operate and monitor this specialized pressure chamber in different settings. They work in hospitals or other healthcare facilities sterilizing surgical devices and other medical instruments. You may also function as an autoclave operator for a manufacturer of rubber products or yarn. In this position, you utilize the machine to vulcanize rubber or cure rubber composites and preset and preshrink yarn.