exhaust fan

American  

noun

1. a fan for ventilating an interior by drawing air from the interior and expelling it outside.

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Etymology

Origin of exhaust fan

First recorded in 1870–75

Example Sentences

For instance, opening windows, leaving doors open throughout the house, increasing ventilation and using exhaust fans can bring down humidity levels.

From Seattle Times

In one instance, Ross said, Adamson discovered an exhaust fan in a backstage bathroom; with the door open, that device became yet another way to increase the flow of fresh air.

From Washington Post

The wind never stopped but blew like an exhaust fan, pulling the moisture from the pine needles, the sage, the cheatgrass.

From Washington Post

If there is an exhaust fan or range hood in the clean room space, only use it for short periods.

From Seattle Times

An exhaust fan in the chemical mixing room was repaired.

From Seattle Times