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Definition:

Air Handling Units

An air handling unit is an integral component of heating, ventilation and air conditioning (HVAC) systems. The purpose of the air handler in HVAC systems is to circulate the air through the duct work. Air handlers often include air filters to help stop dust and allergens from circulating through the environment, heating and/or cooling elements to raise or lower the temperature of the circulating air, and sound and vibration reduction components to make the air handling unit less noticeable.