The ZPD Trainer Software is an interactive training tool that can be used to help demonstrate and teach the complex topic of Zone Pressure Diagnostics (ZPD). The ZPD Trainer screen contains 3 zones (house, garage and attic) that can be adjusted to demonstrate the relationship between air leakage and pressure. The software comes complete with charts and an Excel spreadsheet that can be used to teach ZPD concepts and calculate ZPD test results.

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