The best replacement for humidifier is dehumidifier.

The best alternatives to humidifier are rated as following:
★★★★★  dehumidifier
★★★★★  vaporizer
★★★★  air purifier
★  warm mist humidifier
★  warm mist
★  purifier
★  vaporizer for asthma
★  cool mist humidifier
★  cool mist
★  cool mist vaporizer
★  diffuser
  cold air humidifier
  vaporiser
  boiling water
  steam
  cool humidifier
  vaporizer for cold
  warm air humidifier
  air conditioner
  vaporizers
  warm
  ultrasonic
  bypass
  nebulizer
  air cleaner
  cold mist humidifier
  vaporizer infants
  warm humidifier
  vaporizer baby
  vaporizer cool mist

Your alternative for humidifier is not listed? Suggest!
Speaking about humidifier, one probably shouldn't forget about air purifier.

Other search terms related to humidifier and their ratings are:
★★★★★ air purifier
★★★★ humidity control
★★★ white dust
★★ heater
★★ fan
★★ furnace
★ heat pump
★ ionizer
You have in mind a companion for humidifier and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of humidifier in all years. Click on graph for more.
humidifier
dehumidifier
vaporizer