hu·​mid·​i·​fi·​er | \ hyü-ˈmi-də-ˌfī(-ə)r How to pronounce humidifier (audio) , yü-\

Definition of humidifier

: a device for supplying or maintaining humidity

Examples of humidifier in a Sentence

Recent Examples on the Web

To reduce the temperature in a hot room any time of year, consider using a mist humidifier. Jennifer Adams,, "Ask Jennifer Adams: How to avoid bedroom thermostat spats," 6 June 2019 Research published in Pediatrics found that humidifiers may actually be doing more harm than good, especially to infants. Lindsey Campbell, House Beautiful, "19 Dangerous Household Items You Should Quit Using Immediately," 15 Feb. 2019 Using a humidifier and saline nasal spray is also helpful. Marisa Lascala, Good Housekeeping, "How to Share a Bed (And Still Sleep Through the Night)," 3 May 2019 The couple started working with heating/air conditioning company Trane, and their new home now features a whole-house humidifier and air cleaning system, along with an HVAC system that regulates temps in the garage. Maddie Hiatt, House Beautiful, "What to Know about HGTV's Good Bones Season 4," 15 Apr. 2019 Both cool mist and warm steam humidifiers use a similar procedure, but some of the parts may differ. Caroline Picard, Good Housekeeping, "How to Clean a Humidifier, According to the Good Housekeeping Institute," 4 Jan. 2019 Therefore, experts recommend adding moisture to the air with a humidifier in your bedroom. Talia Abbas, SELF, "11 Tips for How to Treat Eczema During the Winter," 7 Jan. 2019 There's no question about it: A humidifier is an absolute must. Stephanie Shore Fisher, Country Living, "The Honeywell HCM350W Humidifier Is Single-Handedly Helping Me Survive the Winter," 12 Feb. 2019 Unplug, empty the humidifier, and disassemble it completely. Caroline Picard, Good Housekeeping, "How to Clean a Humidifier, According to the Good Housekeeping Institute," 4 Jan. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'humidifier.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

See More

First Known Use of humidifier

1884, in the meaning defined above

Keep scrolling for more

Learn More about humidifier

Dictionary Entries near humidifier


humic acid






Statistics for humidifier

Last Updated

12 Jun 2019

Look-up Popularity

Time Traveler for humidifier

The first known use of humidifier was in 1884

See more words from the same year

Keep scrolling for more

More Definitions for humidifier



English Language Learners Definition of humidifier

: a machine that adds moisture to the air in a room


hu·​mid·​i·​fi·​er | \ hyü-ˈmid-ə-ˌfī(-ə)r, yü- How to pronounce humidifier (audio) \

Medical Definition of humidifier

: a device for supplying or maintaining humidity

Keep scrolling for more

More from Merriam-Webster on humidifier

Spanish Central: Translation of humidifier

Nglish: Translation of humidifier for Spanish Speakers Encyclopedia article about humidifier

Comments on humidifier

What made you want to look up humidifier? Please tell us where you read or heard it (including the quote, if possible).


behavior toward others

Get Word of the Day daily email!

Test Your Vocabulary

Words for Summer: A Quiz

  • a closeup of a sunflower
  • Which of the following words means “of or relating to summer”?
Name That Thing

Test your visual vocabulary with our 10-question challenge!

Add Diction

Test Your Knowledge - and learn some interesting things along the way.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!