As people's awareness of their indoor environment increases, indoor air quality (IAQ) is emerging as a national priority in the schools and commercial and institutional buildings of America.
Good IAQ in these spaces is dependent on maintaining the quality of a number of variables. Most building occupants are familiar with temperature, humidity, and drafts. These three components combine to create the immediate feeling of comfort or discomfort in the building occupant. The building's heating, ventilating, and air conditioning (hvac) system is responsible for maintaining those variables in comfortable ranges for the occupants.