On this project we contact HEPA vacuumed the interior components of three RTUs. We also contact HEPA vacuumed and hand wiped associated supply and return ductwork in butter room, powder room and 2nd floor storage area. All registers, grilles and diffusers were cleaned. After cleaning, we treated three AHUs and coils with a disinfectant cleaner labeled for use against SARS-CoV-2 or human coronavirus.