CSSD is composed of three zones: dirty zone, clean zone, sterile zone and two barriers which are primary from instrument washers and secondary from rows of sterilizers. Because this arrangement and material flow ensure minimal contamination of sterile products. During the CSSD, the following two main elements must be taken into consideration are the movement of personnel within the CSSD and the flow of medical devices and reusable consumables. The dirty area includes the receiving area, the cleaning area and the disinfection area. In the cleaning area, it includes the decontamination area, manual washing area and ultrasonic cleaning area, while the disinfection area also includes the automated washing area and the automated trolley washing system . The clean zone includes the inspection, assembly and packaging area, documentation and label printing area, clean warehouses, sterilizer loading area, sterilizer room. In the sterile area there are sterilizers, a cooling area, a sterile warehouse and an area for issuing sterile items. Say no to plagiarism. Get a tailor-made essay on "Why Violent Video Games Shouldn't Be Banned"? Get an original essay In the reception area, you should be at the entrance to the CSSD, which is also secured to prevent any unauthorized access. In addition to this, there is also a red line to be drawn on the floor to designate the beginning of the entry area for carts and dirty materials. In the area there are computers with CDDS management software, computer uninterruptible power supply, barcode scanners, stainless steel tables and movable stools. The engineering services also required electrical outlets for computers and scanners, data ports for network connections, door access control, intercom and telephone connection. The decontamination area is identified and labeled “Biohazardous Instruments.” It also has space for clinical waste containers managed by healthcare professionals. Besides that, some fixtures and fittings include a deep double bowl stainless steel sink, stainless steel table tops and movable stools. For engineering services, the supply of cold water to the sink is also required. The manual cleaning area is adjacent to the decontamination area which has all the equipment in the decontamination area and special equipment such as spray gun on the sink to facilitate the lumen cleaning area. Engineering services also require a supply of cold water and medical air for cleaning. For good ultrasonic cleaning, the ultrasonic cleaner should have an interlocked lid and thermostatically controlled heaters or a hot water boiler. It also requires shelving with baskets to store equipment and furnishings. In addition, the engineering services also required deionized water, switched sockets, water drain and hot water boiler. Water sanitizers require a dedicated floor mounted on a conveyor line and sufficiently ventilated to remove heat and odor from the sanitizer agents. Transfer carts and conveyor lines as transportation equipment are needed in that area. The engineering services also required the provision of domestic hot and cold water, deionised water, switched sockets, water outlet and intercom. The cart washer required a dedicated room adjacent to the cart washer to house the boiler and air compressor. This room can be part of the trolley washing package or be a dedicated faculty. It is also necessary for him to come.