humidifier

hyoo-MID-ih-fy-ur /hjuːˈmɪdɪfaɪər/
nounB2TOEFLIELTS
neutral

A device kept in a room or building to increase moisture in the air.

Refers to the appliance itself, which can be a small portable unit or integrated into a central HVAC system.

The story behind the word. Humidifier is built from the Latin 'humidus', meaning moist or wet. The suffix '-fier' comes from 'facere', meaning 'to make'. Thus, a humidifier is quite literally a 'moisture-maker'.

Word relationships

  • dehumidifier: A dehumidifier extracts moisture from the air to reduce humidity, whereas a humidifier adds it.

Commonly confused with

  • vaporizer: A vaporizer boils water to release hot steam, while a humidifier often uses ultrasonic vibrations or fans to release a cool mist.

Word family

  • humid (adjective): Marked by a relatively high level of water vapor in the atmosphere.
  • humidify (verb): To make the air more moist.
  • humidity (noun): The state or quality of being damp or moist.

Collocations

  • cool-mist humidifier
  • ultrasonic humidifier
  • run a humidifier
  • clean the humidifier

Example sentences

  • "Running a humidifier in the baby's nursery helped keep the air moist and relieved her dry cough during the winter." Dealing with winter health issues.
  • "Tropical houseplants thrive when placed near a humidifier, as they require high levels of atmospheric moisture to survive." Caring for indoor plants.

Memory hook

Think of a hot, 'humid' summer day. A humidifier is a machine that recreates that humidity (minus the heat) in a dry room. Humidifier makes dry air humid.

When not to use

Do not confuse with a dehumidifier, which does the exact opposite by removing moisture from the air.

Fun facts

  • Dry air can actually damage wooden musical instruments like violins and guitars, which is why museum instrument galleries always run heavy-duty humidifiers.

Related words

condensation, ambient, HVAC

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