Is It Necessary to Use Humidifier in Air-conditioned Room?

Why Do You Need a Humidifier In Air-conditioned Rooms?

When summer or winter comes, many people think the air humidity is so big that a humidifier, which is normally used in winter, is not needed at all. However, we really don’t need humidifiers in summer and winter? In a real situation, you can find that it is cool or warm to stay in an air-conditioned room, while the atmosphere is very dry. So in an air-conditioned room, it will make people feel more comfortable when an air humidifier is in use.

When an air conditioner is used for a long time, the water in the air will accumulate into drops that will be discharged out of the room, which makes the indoor atmosphere dry. Normally, the air humidity is relatively big, but long time use of air conditioners can make indoor air humidity small and accelerate the race of body water evaporation. When the weather is hot, people’s pores are open. The air conditioner and fan blast directly to human bodies, which can easily cause a cold fever, and backaches.

Therefore, when using an air conditioner, people can use a suitable home humidifier to improve indoor humidity, which can alleviate the problems of excessive skin water loss and dry throat that are caused by the dry indoor atmosphere. At the same time, a humidifier can purify the indoor environment, reduce indoor dust, and have a good effect on maintaining the humidity and cleanliness inside of noses.

How To Choose The Correct Humidifier?

1. According to The Room Area

When using a humidifier at home, too dry and too wet is not good. Only scientific humidification can provide better care for you and your family’s health. So the building area is one of the factors that should be taken into consideration.

For example, you can use the whole house humidifier for the large rooms, but if you want to save money, it is suitable to use a smaller humidifier with 270 ml/h in humidity in a 20 m² room and 540 ml/h in a 40 or 50 m² room.



Aprilaire 500MZ Humidifier for Whole Home

LEVOIT LV600HH Humidifier for Large Room

Raydrop KC-RD03 Humidifier for Small Room


10.2 x 15.6 x 13 inches

11.3 x 7 x 10.5 inches

11.42 x 6.3 x 5.55 inches

Item Weigh

6.1 Pounds

 4.84 Pounds

 1.98 Pounds

Water Tank Capacity

12 gallons

1. 59 gallons

0.45 gallons

Max Moisture Capacity




Space Coverage

3,000 Sq. Ft.

753 Sq. Ft.






Customer Rating





More Information

2. According to Humidifier’s Function

Nowadays, humidifiers have more and more functions, such as warm air, antibacterial, aseptic humidification, silver ion sterilization, humidistat control, and so on. Compared with a humidifier only with humidification function, the humidifier with the above functions is more beneficial to health.

Choosing a suitable humidifier for your space depends on individual needs:

  • If you are a beautiful lady who wants to moisturize skin, maintain beauty, and keep young, a humidifier with a warm air function would be a good choice.
  • If you are a person who values time and effort, you can choose a humidifier with a humidistat control function that can humidify automatically or stop humidifying according to the indoor humidity. Most humidifiers use humidity display technology which allows you to know the indoor humidity at a glance.

3. According to Humidifier Types

The humidifiers on the market can be basically divided into three types, electrothermal humidifier, ultrasonic humidifier, and evaporative humidifier.

The electrothermal humidifier, which is unsafe and consumes large power energy, can not be easily seen on the market. So, ultrasonic humidifiers and evaporative humidifiers are the most popular types.

4. According to Humidifiers’ Brand

A humidifier is not an expensive home appliance, but you cannot buy one casually to place at home. People who buy humidifiers all want guaranteed quality and longer service life.

So, it is especially important to choose a reliable brand. If you go to a store or a supermarket, you can find countless humidifier brands, whose prices range from dozens to hundreds of dollars. The prices of some unknown brands are cheap, but they just have a humidification function, no sterilization, or other functions. And their after-sales services are not guaranteed. Such unknown brands are not recommended to buy.


With a history of nearly 60 years, BONECO won the Red Dot Design Award twice in recent years. American Consumer Reports highly recognized BONECO humidifiers’ big spray volume, low noise, and convenience.

BONECO humidifiers can create an environment with constant temperature and humidity. The tiny mist can make people breathe more smoothly. And they also have excellent air purification function which has a high cleaning efficiency for dust, bacteria, and fungus.

BONECO does quite well in lowering the noise. At night, the BONECO humidifier can function quietly and improve your sleeping environment.

2. Honeywell

With respect to indexes of noise, efficiency, and water quality set by Consumer Reports, Honeywell has received a high evaluation. Honeywell humidifiers also humidify through ultrasonic waves.

It has solved the problem of the “white powder” phenomenon by improving the outlet as BONECO did, but it does better than BONECO in comfort.

Nevertheless, Honeywell produces mostly small humidifiers that are suitable for use in smaller rooms.

3. Venta

Venta humidifiers can keep indoor air at around 40%, which accords with the needs of the human body to get comfortable. They also have an air purification function. They can filter some common indoor pollutants such as pollen, second-hand smoke, and PM2.5 through the rotation of the impeller, which can save money to buy filters.

But the cost-effectiveness of Venta is lower than BONECO and Honeywell which also have air purification functions. The price of Venta humidifiers is not expensive, so it is not suitable for a low budget.

4. Stadler Form

For those families in which someone gets allergic asthma, choosing the Stadler Form humidifiers can help relieve the symptoms of this asthma.

Stadler Form attaches great importance to the water mist cleanliness and effective filtration to bacteria and viruses is its outstanding advantage. Stadler Form humidifiers can kill most of the bacteria in the water by using a silver ion filter with antibacterial properties.

EER is another highlight of the Stadler Form. Even used in a room of 80 ㎡, humidifiers would not waste too much power.

How To Use The Humidifier Correctly?

Many families close their windows when the air conditioner is in use, which causes a dry indoor atmosphere. If a humidifier is not used correctly, the microorganism floating in the air will multiply rapidly under suitable temperature and humidity. Do not add things (except water) into a humidifier and do not turn it on and off frequently. When the air is too humid, the body cells will be “lazy”. Kids will be listless and depressed. So it is recommended that turn it off for a period of time every two hours and keep good indoor ventilation. It also matters how to position the humidifier. It is better to position it on a stable surface about one meter high and it should be as far as possible away from heat, corrosion, or something like that.

In order to ensure air cleanliness, the water inside of a humidifier must be replaced every day. When cleaning the humidifier, do not forget to clean the mist outlet as well as the water sink and tank. Warm and comfortable indoor temperatures can easily make legionella bacteria and fungi in water multiply in large quantities. If the water is not replaced in time, bacteria will get into the respiratory tract along with the mist, which may cause some diseases.

As you can see, the humidifier is really useful all year round and there are many specific features in its usage.