The focus of ventilation is to introduce a steady supply of fresh air to a space and circulate it. Keeping that air moving in a way that brings it back to the air handling unit also allows the system to continue mixing in fresh air while also preserving much of the energy that’s already been expended to heat or cool that air.
As new air is introduced, it goes through a heat exchange unit where it can be temperature balanced with the existing air. This efficient system reduces energy expenditure while maximizing air quality. The addition of filtration to this system can further improve air quality by removing irritants and contaminants like smoke, viruses, bacteria, mold, pollen and more.