Humidifier vs dehumidifier

It is not an easy task to constantly maintain a suitable humidity in a home. Sometimes, you may need to run a humidifier and other times, you need to run a dehumidifier instead.

These two machines help to enhance the quality of air in any living environment. However, their mode of operation is different.

When there is excessive moisture in your home a dehumidifier will eliminate it and makes the air in your home drier.

On the flip side when there is insufficient moisture in the air around your home, a humidifier works to improve the moisture in the air.

Deciding when to use a humidifier Vs a Dehumidifier

The right level of humidity for a home should be between thirty-five and forty-five percent. Maintaining the right level of humidity in a home makes you feel a bit more comfortable and live healthier.

At the same time, it protects your home from damage due to extreme dryness or extreme humidity. To find the level of humidity in your home you need to use a hygrometer.

You’d need a dehumidifier if the humidity level is 50 percent and above and a humidifier if the humidity level is below thirty-five percent.

Comparing a humidifier and a dehumidifier

1. Humidifier vs. Dehumidifier Usage

Humidifiers and dehumidifiers are utilized at specific times every year to eliminate the growth of molds and nose congestion. A humidifier helps to boost air moisture any time it is too low and not up to thirty-five percent.

A dehumidifier minimizes the moisture content of the air when the level of humidity is more than fifty percent.

Comparing the uses of a Humidifier and a dehumidifier

A Humidifier:

•    Boosts the moisture content of the air

•    Is regularly used during the drier winter months

•    Prevents excessive drying of the skin, allergic reactions, and nose congestions

A Dehumidifier:

•    Reduces the moisture content of the air.

•    Mostly utilized during the warmer and more humid summer months.

•    Eliminates molds and mildews which are common causes of allergic reactions. It also reduces headaches.

2. Humidifier vs. Dehumidifier types

Types of Humidifiers

There are two major types of humidifiers. These are warm mist humidifiers and cool mist humidifiers. All the different types of humidifier have different modes of operation.

Warm mist or steam humidifiers boils water which ejects vapor into the surrounding air. Cool mist humidifier operates with the use of a fan or rotating disc system. The rotatory action causes the water to evaporate and disperse through the surrounding air.

You need to constantly clean a humidifier to prevent the buildup of mold and mildew. It is better to operate the machine with a distilled water and any excess water should be thrown into the reservoir after you’ve used it.

Types of Dehumidifiers

Dehumidifiers, on the other hand, have four major types. These include:

•    Refrigerative/mechanical dehumidifiers

•    Electronic dehumidifiers

•    Desiccant dehumidifiers

•    Ionic dehumidifiers

The most frequently available type of dehumidifier is the refrigerative dehumidifier. It makes use of a fan to suck-up moisture away from the air and across a refrigerative coil.

3. Humidifier vs Dehumidifier and Humidity level

Humidifier and dehumidifier work to regulate the level of humidity in a home. However while a humidifier increases the level of humidity, a dehumidifier reduces the level of humidity.

The two machines can assist to eliminate respiratory issues like asthma and congestion of the chest.

4. Humidifier and dehumidifier for cold

A humidifier moistens the nasal opening and boosts airflow for individuals who suffer from chest and sinus congestions caused by cold. What the dehumidifier does is to eliminate excess moisture in the surrounding air. And this can help individuals suffering from asthmatic conditions.

Two machines work together to regulate the body system and make us more comfortable during the cold season. During the winter season, there is less evaporation of water vapor as the air is denser. This makes a humidifier a better option to be used during the winter season.

5. Humidifier and dehumidifier for winter

During the dry winter season, a humidifier increases the moisture content of the air in a room. This minimizes the possibility of airborne viruses thriving and resulting in a flu infection.

Using a dehumidifier during summer is not recommended since its key function is to lessen the moisture content of the air and given the dryness of winter air, it doesn’t make sense to use it.

6. Humidifier and dehumidifier for the basement

Basements are frequently infested by molds because they have minimal heating and also are hardly exposed to the rays from the sun.  Thus, they commonly accumulate excess water which makes the humidity high. For this reason, it is essential to use a dehumidifier in the basement to reduce the humidity level. A humidifier is not normally required in a basement.

7. Mold removal and Humidifier Vs dehumidifier

Mold buildup is commonly high in an environment with a high humidity level. An environment with drier air and low humidity are unconducive for mold growth and buildups. Therefore, it is more suitable to use a dehumidifier for mold elimination. Using a  humidifier, in such a situation, would worsen the situation.

It is essential to maintain an appropriate level of humidity in your home with both the dehumidifier and the humidifier. Too much humidity is bad for both your health, your properties, and your belongings. Humid air makes the environment favorable for the growth of molds and mildews which has many distasteful effects.

On the other hand, the humidifier is equally useful for maintaining an appropriate level of air in your home. Excessive dryness can make your floors and ceiling to start cracking. It can as well make your skin dry and itchy and irritate your respiratory tract.


The recommended normal humidity level for any home is from forty to fifty percent. When it is above 50 percent it is too much and you need to run a dehumidifier to bring it down to the normal range. Again, when it is below 35 percent, it is too low and you need to run a humidifier to boost the moisture content of your home and return the humidity level to normal. You need to use a hygrometer to measure the level of humidity in your home.

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