Specifications include, but are not limited to: The interior of all HVAC ductwork connected to AHUs -1 and -2 shall be cleaned to remove mold and dustaccumulation. Thorough brushing of the duct to remove the visible biological contaminates and dustparticles combined with an EPA registered disinfectant are a sufficient cleaning process. Containment andremoval of the dust/mold is the Contractor's responsibility. "Ductwork" includes all heating and cooling ductswith the ducts beginning at these two AHUs and continuing through main lines, trunk lines, VAVs, branchlines, and through to the registers in all rooms. Reference drawings M-9, M-10, M-11, M-12, M-13, and M-14 for duct layouts.2. Interior surfaces of VAVs shall be cleaned and disinfected using the same methods as applied to theductwork.3. All supply registers and return air grilles shall be removed, cleaned, sanitized, and re-installed. Vacuumarea around the supply registers and air grilles