(a) Cleaning / Disinfection Standard
1. Lift cars and escalators
• Disinfect and wipe clean lift cars, escalator handrails, especially call buttons inside and on each floor with a cloth soaked with diluted household bleach (1 part of bleach with 99 parts of water) regularly.
2. Lobby entrance areas
• Disinfect and wipe clean main building entrances, doorknobs and handles, security locks and buttons with diluted household bleach (1 part of bleach to 99 parts of water) regularly.
3. Enquiry counters
• Disinfect and wipe clean counter surfaces, commonly used stationary with diluted household bleach (1 part of bleach to 99 parts of water) regularly.
4. Corridors, staircases and floors
• Disinfect and mop clean corridors, staircases, handrails and floors with diluted household bleach (1 part of bleach to 99 parts of water) regularly.
5. Public facilities
• Disinfect and wipe clean public facilities such as chairs, resting area, public phones, vending machines and information kiosks and handrails with diluted household bleach (1 part of bleach to 99 parts of water) regularly.
6. Workplace
• Disinfect and wipe clean commonly-used furniture and equipment, including telephones, doorknobs, window handles, buttons, switches, intercoms, computer keyboards, printers, fax machines, trolleys with diluted household bleach (1 part of bleach to 99 parts of water) regularly.
• Clear and clean dustbins regularly.
• Vacuum carpets regularly.
• Disinfect and mop floors with diluted household bleach (1:99) regularly.
7. Lecture theatres and classrooms (in active use)
• Disinfect and wipe clean all desks and chairs, doorknobs and switches with diluted household bleach (1 part of bleach to 99 parts of water) regularly.
• Vacuum carpets regularly.
• Disinfect and mop floors with diluted household bleach (1:99) regularly.
8. Toilets
• Disinfect and wipe clean the lids, seats and rims of the toilets with a cloth soaked with diluted household bleach (1 part of bleach to 99 parts of water) regularly.
• Disinfect and wipe clean hand soap dispensers, toilet roll dispensers, hand dryers and cubicle doorknobs with diluted household bleach (1:99) regularly.
• Pour some household bleach into the toilet bowels regularly or place self-dissolving bleach block in the flushing water tanks.
• Pour diluted household bleach (1:99) into urinals regularly.
• Pour diluted household bleach (1:99) into the floor drain regularly.
• Disinfect and mop clean floors with diluted household bleach (1:99) regularly.
9. Refuse collection rooms
• Disinfect and wash floors, walls and collection bins with diluted household bleach (1 part of bleach to 99 parts of water) regularly.
10. Washing facilities drains
• Pour some bleach into the drains facilities regularly.
• Pour diluted household bleach (1 part of bleach to 99 parts of water) into the drain of less frequently used facilities regularly to ensure the drain trap is always full.
(b) Self-Protective Measures for Cleaning Staff
Routine Cleaning/Disinfection
• Wear surgical face mask, cleaning gloves and goggles.
• Wash hands before and after wear the mask and gloves.
• Replace the mask daily or as soon as it has become damaged/contaminated.
• Dispose the used mask into a plastic bag and put same into a covered bin.
• Clean the cleaning cloth with bleach after cleaning/disinfection as appropriate.
• Wash hands with liquid soap frequently, particularly so after each cleaning operation.
• Take a shower from hair to toe and change clothes at the close of each working day.
If cleaning vomitus, use 1:49 diluted household bleach solution.
(c) General Inspection
• Ensure soil and waste pipes function properly. Any abnormal water splashing should be reported for rectification.
• Ensure refuse is not accumulated in common areas such as corridors, rooftops, staircases or lift pits.
• Look for signs of pest infestation (e.g. rodent droppings, cockroaches, stagnant water) and, if present, clean immediately. Engage pest control if necessary.
• Ensure all water storage tanks are properly covered and that there is no overflow.
• Ensure all ventilation system function properly and are cleaned and maintained regularly to prevent accumulation of dust and dirt.
Dr. Kitty Chan
Convenor
HKU Task Force on SARS
July 8, 2004