Swegon: Getting to grips with internal leakage in air handling units

Internal leakage of air in ventilation systems is wasteful and it can also affect the indoor air quality so we need to minimise leakage to both optimise the energy consumption and ensure the best possible air quality. In this article, you will get to know different modes of internal leakages and how to avoid them. We differentiate between internal and external leakage. Internal leakage occurs between the dividing walls of the internal sections and external leakage is the leakage through the unit casing between the inside and outside of the unit.