Performance Food Group, one of the largest food distribution companies in the United States. They hired Duct & Vent Cleaning of America, Inc to ensure that they are maintaining the cleanliness of their HVAC Systems. This promotes the care and increases the longevity of the Air Handling Units and system components by lessening the amount of debris that will be drawn through the system. It also ensures healthy indoor air quality throughout their facility. The process to clean the air conveyance systems at Performance Food Groups is to contact HEPA vacuumed existing supply and return ductwork, registers, grilles and diffusers.