Abstract: Disclosed and claimed herein are devices for the treatment of medical waste using high temperature and pressure steam. The devices combine both the sterilization chamber and the steam generating component. The devices may be self-contained and may be movable by one person of average strength and ability. The devices which are self-contained require no special installation, connections, plumbing or permanent or semi-permanent electrical connections. Disclosed and claimed herein are methods using the disclosed and claimed devices.