Have all registers, grilles and diffusers been firmly reattached to your partitions, flooring and/or ceilings? Take away any remaining paper towels in the ducts and supply vents and eliminate them. Attach the grilles back on to the vents and position the ground registers back into place. Nonetheless, minor proof exists https://spencerxdkpv.wikipublicist.com/4847167/duct_cleaning_virginia_beach_fundamentals_explained