Doctors now speak of the risks of sitting and smoking in the same breath; no bigger threat to the welfare of office drones has animated water cooler discussions since sick building syndrome. (canadianbusiness.com)
So - called sick building syndrome is thought to be caused by poor ventilation and a build - up of microorganisms, usually in the heating and air - conditioning ducts. (newscientist.com)
Sick building syndrome tends to occur in buildings that have air - conditioning and that are fitted with automated heating and ventilation systems for circulating air. (educationbusinessuk.net)