Daily: Empty wastebaskets and replace liners; remove trash; sweep uncarpeted floors; vacuum all carpeting (vacuums must be equipped with a HEPA filter); and clean all drinking fountains and/or water coolers. All trash must be removed from the premises and disposed by the vendor. Weekly: Wash all uncarpeted floors; dust furniture; dust all horizontal surfaces including fixtures, file cabinets, blinds, windowsills, and radiators; clean all door entry window glass, visual panels, and sidelights of work area doors. Semi-annually: Shampoo carpets; vacuum upholstered fabric-covered surfaces, including modular system furniture panels; wash windows (inside and out); damp wipe air diffusers, vents, and surrounding walls and ceilings.