TBH 511/2023: FOR THE CLEANING AND DISINFECTING OF VARIOUS HVAC EXTRACTION AND AIR SUPPLY VENTILATION GRILLS AT VARIOUS AREARS AT TYGERBERG HOSPITAL FOR A TWENTY-FOUR (24) MONTH PERIOD, EFFECTIVE 1 AUGUST 2023 UNTIL 31 JULY 2025 | Tygerberg Hospital | Closes 19 July 2023 | Ref 57982 | ProTenders