Dirt is built up in ventilation and air conditioning systems over time and these must be cleaned regularly in order to be efficient and have a long life.
The cleaning of systems also affects indoor air quality, although this is a controversial issue as no studies have been conducted to scientifically verify the true impact of duct and system cleaning on indoor air quality.
There are several different methods used for cleaning ducts. If duct cleaning is carried out properly, it does not need to be repeated for another 5 to 15 years, depending on factors such as dirt in the environment and the quality of filtration available.
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