Occupant comfort and occupant health are two major reasons to install accurate Airflow Meters with integrated controls. Most people do not notice when air quality is good in a building. And conversely, most do realize when the building is too hot, cold, humid, stale, musty, etc. When these conditions exist, it can easily be attributed to the improper amount of Outdoor Air coming into the building. For example, have you ever walked into a room which smells musty and feels moist? Well, that is because the room is not receiving the proper amount of Outdoor (fresh) Air.