Our goal is to remove all the dirt and dust. The truck-vac system and abatement portable vac systems are among the most powerful available in the air duct cleaning industry. But don't worry about remembering all this! You can get detailed information before your appointment and before the process is began. Our techs don't mind if you hang out and watch, actually we love to be able to show you the things that are visable during the process. No subcontractors or one-man crews at Pure Air. Our specialists are experienced in the latest procedures and most effective duct cleaning tools. The 8'' vacuum hose it attached to both the supply and return sides of the system. During cleaning, all dirt and debris is pulled directly to the vac truck. Pulling large volumes of air toward the truck, we now send our scrubbing tools down each supply run to remove dirt, dust, and hair. Once all the supply registers are clean, we move to the return air system. This includes all the grill covers and drops throughout the house. All supply and return duct work are cleaned with our special scrubbing tools. New galvinized access panels are installed over the opening created for the vacuum hose. Floors are swept and all debris is removed.