Does a Cool-Mist Humidifier Make a Room Cold? Solved!

By Samuel-N •  Updated: 06/25/22 •  4 min read

A cool-mist humidifier dissipates a cozy stream of room-temperature mist throughout your space. In contrast, a warm mist humidifier utilizes an internal heating component that boils water before dispersing it into your space as a relaxing invisible mist. However, regardless of how popular cool-mist humidifiers are, many still ask if this humidifier will cool a room?

Ultrasonic Cool Moist Humidifiers

This is the most common type of humidifier. They are preferred because their operation is mostly quiet. Ultrasonic humidifiers use a vibrating metal diaphragm to create ultra-fine mist at very high speeds. The mist is then dispersed into the air by a fan mechanism.

Ultrasonic Cool Mist Humidifier

Ultrasonic Cool Mist Humidifier

Besides their quiet operation, ultrasonic humidifiers are small and compact because of their simple working mechanism. They also do not generate heat, consume very little electricity, and you don’t need to replace any parts to keep them working.

Evaporative Cool Moist Humidifiers

This type of cool mist humidifier works by passing air through a moist wick or filter using a fan. When the air is passed through the wick/filter, it helps the water evaporate, which humidifies a room. An evaporative humidifier is one of the simplest types of humidifier. Like leaving a bowl of water in a room and letting it naturally evaporate, an evaporative humidifier uses the same principle. A fan is added to speed up the process.

Honeywell Evaporative Cool Mist Humidifier

Honeywell Evaporative Cool Mist Humidifier

The advantage of an evaporative humidifier is that the wick helps trap mineral scale and reduces the risk of it filtering into the room. They also cost less than an ultrasonic humidifier, and the sound levels vary according to the design.

Benefits of Using a Cool Mist Humidifier

1. It makes the air inside fresher

A good quality cool-mist humidifier refreshes the air in your space and reduces scenarios of foul smell in your room.

A cool-mist humidifier will benefit your health and wellbeing and enhance better oxygen supply. In addition, it will make the air more fresh and pleasant to breathe and live in.

2. It makes you comfortable during dry climates and seasons.

A cool-mist humidifier will improve your life if you live in a place where the climate is dry. Moreover, it will aid in minimizing the discomforts and health problems caused by living in areas where the air is too dry (up to 30%).

3. It helps prevent allergies and respiratory problems

When there is minimal moisture in the air, your skin becomes dry and can also cause dryness in your eyes, nasal canal, and throat. This will irritate you most of the time.

Moreover, if you have allergic reactions like beehives or eczema, the moisture in the air will help mitigate the itchiness and discomfort. When the humidity is enough, the skin remains properly hydrated.

In addition, having the proper humidity in your bedroom will also enhance better and more restful sleep, easier breathing, and minimize sleeping and respiratory defects caused by dry air.

4. Reduces static electricity

If you are keen enough, you will realize that you have many incidents of bad and, at times, dangerous static electricity. This results from friction between the positive and negative charges on objects, increasing due to the air’s lack of moisture. A cool-mist humidifier will therefore make these incidents minimal.

Happy Time Using your Cool Mist Humidifier

To summarize, as we have covered, a cool-mist humidifier will not make your room cold. However, selecting a warm and cool mist humidifier will depend significantly on taste and preference.

I would advise you to research before making any purchase. The right cool mist humidifier will give you so much comfort, and you will get healthier daily. Lastly, ensure that you properly maintain them.


Samuel is the founder of Cozy Indoor and has been in the home renovations industry since 2013. Since then, his mission is to make home cooling, heating, and air quality easier for everyone to understand. Read my guides and reviews here on cozyindoor.