ALLERGY RELIEF

Air Duct Cleaning

The conventional HVAC duct system consists of a supply system of ducts to carry heated or cooled air from the furnace/air conditioner (air handler) to various parts of the home or building, and the return duct system to bring fresh air back to the air handler to be heated or cooled again. The supply network consists of a main duct which carries air to smaller branch runs which carry air to the desired locations. The return network works in reverse.

The Negative Air method utilizes a HEPA portable power vac in tandem with a specially designed AIR-SWEEP portable air compressor for efficient state-of-the-art source removal duct cleaning. This method enables professional duct cleaners to remove contaminants from all parts of the duct system, regardless of location.

Details on How We Clean a System and it's Ducts:

1. The supply and return networks are "zoned" or separated, so they can be cleaned separately. This is typically done by removing the furnace filter, inserting it into a plastic bag, and reinserting it into the furnace.

2. An access hole is cut into the supply plenum and flex duct from the Negative Air Vac inlet is connected to the plenum with a quick-connect attachment collar. The vacuum is then turned on to create an air flow within the supply ductwork.

3. Each branch is cleaned separately starting with the branch furthest from the handler. The register and boot area are air blasted with compressed air from the AIR-SWEEP compressor using the special air booster gun. This pushes any dirt or debris into the branch run.

4. Each Branch is cleaned separately by running a Rotor-Whip down each run to break loose the dirt and debris so it is pulled in the main run. The branches are then swept using a reverse duct sweeper.

5. The main run is then cleaned using the reverse air sweep assembly to dislodge debris accumulated in the duct. It also pulls the loosened debris backward toward the portable power vacuum, to be captured in its multistage filtration/collection system. 1" access holes every 25 feet are all that is needed to use the AIR-SWEEP. This system wide cleaning process allows us to avoid physically removing your vents (which often are painted or caulked in place)

6. Once all the supply side of the system has been cleaned, the return duct system is then cleaned using the same method.

7. At this stage the coil and the furnace fan are gently air washed to remove any remaining dirt or debris.

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