This results in situations where irregardless of the fancy building architecture, the moment building occupants enter the building they start sneezing, have sore eyes and other forms of discomfort. When they get out of the building, they are fine. This is because the building itself is sick because of contaminants in the indoor air. This is referred to as the sick building syndrome.
We regularly clean floors, upholstery, office desks, hospital walls and drapery but……..DO WE CLEAN OUR DUCTS?