Office Cleaning II Course covers three units of competency for certificate II and III in Cleaning Operations. Each of these units is briefly outlined below. Specialist Cleaning – Computer room cleaning: rooms where dust can destroy sensitive equipment such as computer server rooms, laboratories and other clean environments. This unit does not cover sterile environments such as working in operating theatres, medical device manufacture and pharmaceuticals. Periodic Cleaning – Cleaning ceiling surfaces and fittings – is a periodic cleaning duty normally performed using extension poles and small a-frame ladders. Periodic Cleaning – Washing furniture and fittings – include the periodic washing of hard surface furniture and fittings. This could include any commonly cleaned items from, tables and chairs to walls, and finishes, office furniture and fittings.