We highly recommend using a Florida Certified Mechanical Contractor to inspect and clean your air system. As a certified Mechanical Contractor the technicians, are properly trained to decontaminate your air system and not only can they properly clean your air system due to their extensive knowledge and experience with air systems and indoor air quality, but they can also alert you of any additional areas that might need attention to improve upon your indoor air quality such as; filtration considerations, damage, structural air flow problems, or inefficiencies of your present system. In more humid and hot climates, you will want to have your air systems inspected and service, at least every season, to assure that your air system and air ducts is clean of debris providing good indoor air quality.
Assuring that your air ducts and air systems will be properly cleaned with the correct equipment, personnel has the proper training and is a Florida licensed Mechanical Contractor and that has the expertise in cleaning your home or building, is a small price to pay for the possible health benefits for you, your family, or the occupants of the building.
Remember; think about your air system as the lungs of your home. Then consider the type of company that you want to handle your home’s lungs and your indoor air quality within your home. Have the complete air system periodically inspected for contaminated duct work and have it properly maintained so your Heating and Air System can provide your family with good air quality for years to come. Qualified air duct cleaners will follow strict standards set by the National Air Duct Cleaners Association. Allowing an unqualified contractor to clean your ducts could be worse than not having them cleaned at all. More particles could be broken up and released into your home or your HVAC system could be damaged.
"Energy is consumed by HVAC systems through a number of processes. Air is typically distributed through the ductwork via an electrically‐powered fan. Cooling coils remove heat from the air. Heating coils add heat to the air. Through normal HVAC usage, particulates in the air slowlycollects on the surfaces of various HVAC components, resulting in a gradual loss of energy efficiency. Some loss of efficiency via a single dirty component may be minor. When the loss through each component is added up, however, the impact could be considerable. Generally, the greater the buildup, the greater the energy loss. Removal of the buildup of particulate on HVAC components restores energy performance to the system." 
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