This part of ISO 10079 specifies safety and performance requirements for electrically powered medical and surgical suction equipment. It applies to equipment used in health care facilities such as hospitals, for domiciliary care of patients and for field and transport use. Annex D illustrates the three parts of ISO 10079 by providing a schematic for typical systems. Additional requirements for suction equipment intended for field and/or transport use are included in this part of ISO 10079. This part of ISO 10079 does not apply to the following: a) central power supply (by vacuum/compressed air generation), piping systems of vehicles and buildings, and wall connectors; b) end-piece such as suction catheters, drains, curettes, Yankauer sucker and suction tips; c) syringes; d) dental suction equipment; e) anaesthetic gas scavenging systems; f) laboratory suction; g) autotransfusion systems; h) mucus extractors, including neonatal mucus extractors; i) suction equipment where the collection container is downstream of the vacuum pump; j) ventouse (obstetric) equipment; k) suction equipment marked for endoscopic use only; l) plume evacuation systems.