Duct & Vent Cleaning of America, Inc was hired to contact HEPA vacuum two roof-top air handling units, all of the ductwork, and all of the registers/diffusers/grills servicing the modular classrooms. This also included cleaning the four-unit ventilators servicing the 4 Pre-K classrooms. This project is meant to help ensure the students and teachers have healthy indoor air quality in the classrooms.