The Difference Between Evaporative And Ultrasonic Humidifiers. Their Main Features


A humidifier is a device that is used to increase moisture in a room or can be used in a whole building. They are commonly used in homes during winter or in buildings that use heavy machinery. Humidifiers that are used in homes can be portable or stationary whereas those used in large buildings are stationery. You could check on this site: ChooseHumidifer many types of humidifiers which include:

  • Evaporative humidifiers.
  • Natural humidifiers.
  • Impeller humidifiers.
  • Vaporizers.
  • Ultrasonic humidifiers.

However in this article we shall discuss two types which are evaporative and ultrasonic humidifiers. EVAPORATIVE vs ULTRASONIC HUMIDIFIERS.

There are three differences between these humidifiers which are the charges, noise how each will handle mineral scale deposits.

  • Price.

The evaporative one is cheaper than the ultrasonic, though the cost of changing filters becomes high for the evaporative one compared to the ultrasonic one which has no filters but has to be maintained regularly.

  • Operation noise.

The ultrasonic humidifier has very low noise levels compared to the evaporative one, as it's noise is unavoidable.

  • Mineral scale deposits.

The ultrasonic humidifier will emit more white dust than the evaporative ones, these white deposits are the mineral water deposits found in the water.



This humidifier works in such a way that humidity is produced by something that draws the air in from the room and blows it through a wick which is made of a porous material that has been moistened in water.

Some of the water evaporates into the air and this way the humidity increases. Using the wick filter to hold and draw water to the fan, which is adjacent to it, it expels it in form of a water spray through the help of the fan. These filters need to be cleaned and replaced regularly for continued efficiency.


This kind of humidifier uses high frequency vibration of sound to produce a very fine mist that is produced to add moisture the room. This mist is forced out by a fan. It uses a piezoelectric transducer to create mechanical vibration in water, which forms an extra fine mist of droplets which are then evaporated into the airflow. This kind of humidifier does not have a filter thus one is advised to use distilled water and to clean it regularly to prevent contamination of the air through bacteria,


  • It lowers infections because viruses and bacteria cannot travel well in moist air.
  • It helps to maintain a vibrant skin because cold dry air removes moisture from the skin leaving it dry.
  • It relieves sinusitis as dry air drains the sinuses which lowers resistance to bacteria and viruses as opposed to moist air.
  • It protects furniture as dry air damages wood causing cracks and splits as opposed to relatively humid air.
  • It can reduce snoring which is caused by a dry throat or sinuses whereas a moist room is warmer and comfortable.



  • Excessive use of a humidifier can raise humidity to high levels which promotes the growth of dust mites and mold.
  • Usage of hard water in an ultrasonic humidifier will cause production of white dust which is mostly calcium, that spreads over furniture, and is attracted to static electricity generating electric devices.

In conclusion, a humidifier is used to add moisture, it all depends with your taste and preference.

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