Indoor Air Quality and Sick Building Syndrome

In fact, the EPA has listed both lAQ and sick building syndrome as one of the top five environmental problems . 

Adverse health effects with increased VOC concentrations can begin first with eyes and respiratory irritation (including asthma), then become associated with irritability. 

Sick building syndrome (or as it is sometimes called Sick House Syndrome) is directly connected to lAQ and it is simply due to the poor indoor air quality . 

As regards the diagnosis of a sick building, the rule of thumb is as follows when at least 20% of building occupants complain of the same medical symptoms from an unknown cause for at least two weeks , the building can be suspected of being sick . 

In most cases, the ideal relative humidity range should be between 37% and 55%. 

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