dehumidifier

American  

[dee-hyoo-mid-uh-fahy-er, -yoo-] / ˌdi hyuˈmɪd əˌfaɪ ər, -yu- /

noun

1. an appliance for removing moisture from the air, as for lowering the humidity in a storage room.

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dehumidifier British  

/ ˌdiːhjuːˈmɪdɪˌfaɪə /

noun

1. a device for reducing the moisture content of the atmosphere

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dehumidifier Scientific  

/ dē′hyo̅o̅-mĭd′ə-fī′ər /

1. A device used to remove water vapor from the air, thereby lowering the humidity of the air.

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Etymology

Origin of dehumidifier

First recorded in 1920–25; de- + humidifier

Example Sentences

Mr Trapp recommends using a dehumidifier in the room where you dry laundry and close the door to prevent water vapour getting to the rest of the house.

From BBC • Jan. 3, 2026

The financial journalist Martin Lewis has previously pointed out on his BBC podcast that running a dehumidifier is generally "far, far cheaper" than putting on the heating in a room.

From BBC • Jan. 4, 2025

Like setting up an array of box fans and even a portable dehumidifier to get a puli’s long, thick cords dry after a bath, a process that can take 24 hours, in Valarie Cheimis’ experience.

From Seattle Times • May 13, 2024

Over the hum of an industrial-strength air purifier and dehumidifier, Moss said the tenants had to vacate the unit quickly, leaving food and dishes on the counter.

From Los Angeles Times • Feb. 13, 2024

Even a small ozonator to make the air seem more breathable, and a dehumidifier, Tremaine.

From Let'Em Breathe Space by Del Rey, Lester