a mobile fire safety training facility which simulates a residential structure and has reduced scale rooms and exterior for appeal to children . a two level structure mounted on a conventional flat bed trailer includes conventional house windows and doors for instruction on escape methods , a non - toxic smoke generator , operating smoke alarms and a functioning telephone system for instruction on emergency telephone use . the reduced overall height of the structure and a truss roof structure permit highway transportation , and an on - board control room with full view of the entire interior assures the safety of the children using the facility .