{"schemaVersion":1,"slug":"iec-extract-fan-plan-mark","name":"Extract fan plan mark","kind":"symbol","abbreviation":"EF","aliases":["extractor fan","exhaust fan symbol","ventilation fan outlet"],"category":"installation-communications","drawingTypes":["GA"],"referenceFamilies":["IEC"],"summary":"Plan mark for a wall or ceiling extract fan, drawn as a fan circle with an outward airflow arrow.","description":["Extract fans in bathrooms, kitchens and plant rooms are drawn as a circle containing fan blades or a cross, with an arrow showing airflow out of the room. The symbol is often linked to a light switch, an overrun timer or a humidistat.","The electrician needs to know the control method because it affects wiring: a fan run from the lighting circuit with an overrun timer needs a switched and a permanent live, while a humidistat fan may only need a permanent supply. The symbol does not state airflow rate or duct size, which are mechanical design items."],"readingNotes":["Read the control method: switched, timer overrun, humidistat or continuous.","Check for an isolator or fused connection unit."],"drawingChecklist":["State control method.","Show isolator location.","Coordinate duct route with mechanical drawings."],"distinction":"A ceiling sweep fan circulates air; an extract fan removes it to outside.","facts":[{"label":"Airflow","value":"Out of the room, shown by arrow"},{"label":"Common control","value":"Overrun timer or humidistat"},{"label":"Exact standard graphic","value":"Not reproduced here; confirm the form against IEC 60617 and the project legend"}],"references":[{"sourceId":"iec-diagrams","relevance":"IEC graphical symbol context; independently drawn here."}],"related":["iec-ceiling-fan-plan-mark","fused-connection-unit-plan-mark","ga-switchroom-exhaust-fan"],"artwork":"s28-iec-extract-fan-plan-mark","publishedOn":"2026-10-28","updatedOn":"2026-10-28","provenance":"independent-public-research","symbolVariant":{"convention":"IEC","form":"Extract fan","reference":"IEC 60617 installation-plan style (architectural and topographical installation symbols); independently drawn, not certified IEC geometry or a database identifier."},"plainEnglish":{"title":"What does Extract fan plan mark mean?","introduction":"Extract fans in bathrooms, kitchens and plant rooms are drawn as a circle containing fan blades or a cross, with an arrow showing airflow out of the room. The symbol is often linked to a light switch, an overrun timer or a humidistat.","example":"The electrician needs to know the control method because it affects wiring: a fan run from the lighting circuit with an overrun timer needs a switched and a permanent live, while a humidistat fan may only need a permanent supply. The symbol does not state airflow rate or duct size, which are mechanical design items.","drawings":"Read the control method: switched, timer overrun, humidistat or continuous. Check for an isolator or fused connection unit. A ceiling sweep fan circulates air; an extract fan removes it to outside.","terms":[{"name":"Schematic","meaning":"A drawing showing function and connections rather than physical appearance."}],"diagram":"flow","steps":["Identify the device and form","Read the connections and state","Check the equipment reference"],"caption":"A guide to reading this reference. The original symbol illustration and its drawing notes appear below; these boxes are not a wiring diagram.","sources":[{"label":"IEC graphical symbols for diagrams","url":"https://tc3.iec.ch/tc-activity/graphical-symbols-for-diagrams/"}],"detail":"Plan mark for a wall or ceiling extract fan, drawn as a fan circle with an outward airflow arrow. A ceiling sweep fan circulates air; an extract fan removes it to outside.","profileId":"reviewed-symbol-20261028"},"url":"https://eloragrid.ai/symbols/iec-extract-fan-plan-mark","illustration":{"url":"https://eloragrid.ai/tools/electrical-library/illustrations/iec-extract-fan-plan-mark.svg","scope":"Original educational concept; not an official standard graphic or product footprint","license":"https://creativecommons.org/licenses/by/4.0/"},"sources":[{"id":"iec-diagrams","title":"IEC graphical symbols for diagrams","publisher":"IEC","url":"https://tc3.iec.ch/tc-activity/graphical-symbols-for-diagrams/","type":"standard","scope":"IEC 60617 and related symbol-design publications. Full database access requires a subscription.","checkedOn":"2026-10-13","reuse":"link-only","relevance":"IEC graphical symbol context; independently drawn here."}]}