http://www.actionduct.com/ ..... Action Duct has provided HVAC duct cleaning services to hundreds of major corporations, numerous municipalities like the City of Los Angeles, many hospitals such as Glendale Memorial and dozens of top-flight hotels like the Four Seasons.Properly cleaning HVAC systems requires removing the sources of contamination.During duct cleaning, the entire HVAC system is placed under continuous negative pressure (vacuum) to prevent the spread of contaminants.
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