The document discusses indoor air quality (IAQ) and indoor environmental quality. It provides background on increased public concern about IEQ over the last decade according to NIOSH. Ventilation requirements were changed in the 1970s to conserve energy, leading to tighter buildings. The document outlines key IAQ parameters and sources of indoor and outdoor pollutants. It emphasizes the importance of proper HVAC system design, operation, and maintenance to control pollutant levels and distribution. The document provides recommendations for facility managers to promote good IAQ, such as designating an IAQ representative, assessing current conditions, educating staff, and communicating with occupants.