IAQPC gives concentration profiles of up to 6 pollutants for up to 62 days in up to 20 rooms. The model includes the effects of building layout, sources, sinks, and the heating, ventilating, and air-conditioning system on pollutant concentration. The calculated results can be displayed as graphs on the screen. Full documentation is provided. The technical manual provides the theoretical background for the model, including details of the algorithms and the program source code listing. The user guide provides instruction on running the model and example runs. The disk contains the executable files for the indoor air quality model, IAQPC. IAQPC is designed for MS-DOS computers. The minimum hardware is an MS-DOS computer with DOS 2.0 or higher, 350 K of Memory and two floppy disk drive. A hard disk and EGA or better graphics card and color monitor are recommended.