söndag 21 september 2014




Contrary to popular belief, it is not necessary to own a giant truck mounted vacuum to perform professional quality duct cleaning. In fact, in larger buildings it is imperative to use portable equipment in order to gain access to all cleaning locations. Truck mounted duct vacuums are more suitable to residential work. Two types of vacuums are required for successful duct cleaning. First is a large HEPA filter equipped negative air machine generating at least 4000 CFM. This unit is connected directly to the duct and maintains the section being cleaned under negative pressure to prevent contamination of the occupied space. It also collects all debris loosened in the cleaning process. A portable HEPA vacuum should also be on hand for contact vacuuming of turning vanes, plenums, coils, drip pans, registers, and other surfaces

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