Indoor Air Quality Understanding Ventilation Systems Improve Indoor Air Quality by Understanding Air Pressurization February 11, 2010 by admin Several factors contribute to poor indoor air quality that can be easily controlled. Air pressurization greatly affects the indoor air quality of a home or building. Pressurization Air flow is created by pressure differentials. Air flow always flows from higher relative pressure to lower relative pressure. If more air is supplied to a room than […] Read more » Air Ducts Air Leak Air Pressurization Air Quality Building Pressurization Energy Audit HVAC Indoor Air Quality Ventilation