According to the EPA’s Website:

Indicators of BRI include:

  • Building occupants complain of symptoms such as cough; chest tightness; fever, chills; and muscle aches
  • The symptoms can be clinically defined and have clearly identifiable causes.
  • Complainants may require prolonged recovery times after leaving the building.

It is important to note that complaints may result from other causes. These may include an illness contracted outside the building, acute sensitivity (e.g., allergies), job related stress or dissatisfaction, and other psychosocial factors. Nevertheless, studies show that symptoms may be caused or exacerbated by indoor air quality problems.