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Ventilation and Air Quality in Offices
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Health Problems and Ventilation
Harmful pollutants from a variety of sources can contribute
to building-related illnesses, which have clearly
identifiable causes, such as Legionnaire's disease.
HVAC systems that are improperly operated or maintained
without a purification system can contribute to sick
building syndrome (SBS); SBS has physical symptoms
without clearly identifiable causes. Some of these
symptoms include dry mucous membranes and eye, nose,
and throat irritation. These disorders lead to increased
employee sick days and reduced work efficiency.
A committee of the World Health Organization estimates that as many as 30 percent of new or remodeled buildings may have unusually high rates of sick building complaints. While this is often temporary, some buildings have long-term problems which linger, even after corrective action. The National Institute for Occupational Safety and Health reports that poor ventilation is an important contributing factor in many sick building cases.
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