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Air conditioning contractors can sell, install, and repair various types of HVAC systems, such as those for residences: window air conditioners, central air conditioning, or large air conditioning systems for structures such as apartment buildings; or portable systems for comfort control within moving vehicles such as automobiles, aircraft or boats; or for industrial temperature, air quality, and air purity control. Air conditioning contractors can help you choose AC equipment that can be effective for air comfort in ways beyond just temperature. For example, HVAC systems can provide ventilation and filtration, which can help control allergies, as well as humidifiers, which improve comfort by reducing humidity. AC systems can come with programmable controls, such as thermostats for controlling temperature, and zone controls to select different temperature and humidity settings in different areas of the home.
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