The TEC Blower Door Simulator is a software training aid that helps trainers demonstrate how to perform a blower door test without having to physically set up a blower door system. The Blower Door Simulator includes a virtual Model 3 Minneapolis Blower Door and DG-700 Pressure and Flow Gauge that can be used to perform a blower door test on a virtual house. Test conditions such as building airtightness, indoor/outdoor temperatures, building style and wind levels can be set to simulate a variety of testing scenarios. The program also includes a RESNET One-Point Test Calculator so that the user can see the effects of temperature and baseline pressure corrections on overall test results using the RESNET test procedure.