
der Ventilator
fan
An electric device with rotating blades that creates an airflow to cool or ventilate a room.
Weil es so heiß war, lief der Ventilator die ganze Nacht.
Because it was so hot, the fan ran all night.
fan
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fan
An electric device with rotating blades that creates an airflow to cool or ventilate a room.
Weil es so heiß war, lief der Ventilator die ganze Nacht.
Because it was so hot, the fan ran all night.
In everyday language, a Ventilator (fan) is 'angemacht' (turned on) or 'ausgemacht' (turned off). In more formal contexts or in instructions, you use 'einschalten' (to switch on) and 'ausschalten' (to switch off). When it is in operation, you say: 'Der Ventilator läuft' (the fan is running).
Kannst du bitte den Ventilator anmachen? Es ist so warm hier.
Can you please turn on the fan? It's so warm in here.
To describe the strength of the airflow, you use the construction 'den Ventilator auf Stufe [Zahl] stellen' (to set the fan to level [number]) or 'auf Stufe [Zahl] laufen lassen' (to let it run on level [number]).
Stell den Ventilator bitte auf Stufe zwei, das reicht völlig.
Please set the fan to level two; that's more than enough.
In Germany, air conditioning is rather rare in private apartments. That is why the Ventilator (fan) is a very common and important device in summer for keeping cool.
Im Sommer sind Ventilatoren in den Elektromärkten oft schnell ausverkauft.
In summer, fans are often quickly sold out in electronics stores.
fan
Both words refer to a device that moves air and thereby cools or ventilates. “Ventilator” usually means a standalone device for a room, while “Lüfter” is used especially for a technical or built-in device. A mobile device for a room is therefore usually called a “Ventilator,” while computers and cars tend to have a “Lüfter.”

Im Schlafzimmer steht ein Ventilator, der an heißen Tagen für Luftbewegung sorgt.
There is a fan in the bedroom that circulates the air on hot days.
Im Computer arbeitet ein Lüfter, der die heißen Teile kühlt.
A fan inside the computer cools the hot components.