On this project, we contact HEPA vacuumed and rotary cable brushed existing supply, return and exhaust ductwork, Register Grilles Diffusers (RGDs), Air Handling Units (AHUs), Equipment Fan Unit (EFUs), Heat Recovery Units (HRUs), Variable Air Velocity Boxes (VAVs), and Make Up Unit Air (MUA) in this correctional facility. The project will be completed in phased work throughout the year according to the mechanical contracting schedule.