As early as 1983, the World Health Organization identified a new disease called Sick Building Syndrome (SBS). The condition refers to types of physical discomfort associated with people who work indoors for a long period. Specific symptoms include headaches, dizziness, eye irritation, dry itchy throat, allergies, chest tightness, dysphoria and difficulties in concentrating. While most people who spend lengthy periods working indoors almost always experience such discomfort, they usually attribute it to the lack of oxygen caused by inadequate indoor fresh air.
In actuality, the fresh air in most modern buildings has to undergo strict scientific calculation allowing a large margin of error to ensure its quality. As a result, the real problem is not the quality of the fresh air, but the quality of the air supplied indoors by leading causes of SBS such as central air conditioning and ventilation systems. If we were to prevent and reduce SBS’s incidence, improving indoor air quality by taking better care of these systems is a must.
Since the SARS outbreak in 2003, health conditions arising from central air conditioning systems have come under the scrutiny of relevant authorities and users. The large quantity of dust accumulating in duct systems is one of their biggest concerns. This is because viruses such as SARS attach themselves to the dust and are transmitted throughout buildings by central air conditioning duct systems. As this generates cross-infection in groups or individuals, regular cleaning of central air conditioning duct systems is vital.
As properly cleaned air duct systems are also very good at cutting energy consumption, they can lower power bills as much as 25-40%. Such duct systems also improve the heat exchange efficiency of fan coils while increasing the volume of air pumped out by the air conditioning compartment. When the ducts and filters of an air conditioning system are clean, the system’s engines do not have to work so hard and comfortable temperatures, energy reduction and improvements in health can all be achieved. Since clean air ducts have so many benefits, why not start taking better care of your systems today?