a system and method of controlling air quality within a room . the method includes determining a first discharge air temperature setpoint based upon a room temperature setpoint and a first value indicative of an air temperature within the room , and determining a first air flow control signal based upon the first discharge air temperature setpoint and a second value indicative of an air temperature of discharge air being provided into the room . the method further includes controlling an air flow device based upon the first air flow control signal , and maintaining a heating device employed to influence the air temperature of the discharge air at a maximum heating level . the method additionally includes monitoring a level of carbon dioxide within the room to determine whether the level is below a predetermined threshold .