By HHI Staff
An air-pressure difference between the indoors and the outdoors that is induced by mechanical devices whose primary purpose is not ventilation. See also Accidental Ventilation.
Source: Understanding Ventilation: How to Design, Select, and Install Residential Ventilation Systems - published by The Healthy House Institute
References listed above credit sources The Healthy House Institute consulted for background or additional information.
All HHI-PediaTM content is © 2006-2024 The Healthy House InstituteTM.
Except for third-party Copyrighted© material, you may freely use, excerpt or cite this material provided the Healthy House Institute receives credit and the Web address www.HealthyHouseInstitute.com is plainly listed with all uses, excerpts or citations.