How to use an air humidifier: 8 steps (with pictures)

How to use an air humidifier: 8 steps (with pictures)
How to use an air humidifier: 8 steps (with pictures)

Air humidifiers are used to humidify the air. They help people fight congestion, dry skin, and sinus discomfort, but they're also effective against things that affect everyday life like static electricity. Using an air humidifier correctly can improve living conditions in a house where the air is dry.


Part 1 of 2: install the air humidifier

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Step 1. Choose the air humidifier that meets your needs

There are many types of humidifiers available in the market and it is very important to find the one that fits your needs and budget. Below are some common types of air humidifiers.

  • Air humidifiers for central heating system. These devices are used to humidify the whole house. They are installed in the central heating or cooling system.
  • Evaporators. These are smaller humidifiers that use filters and fans to humidify the air. They are relatively affordable.
  • Cool mist humidifiers. They diffuse a cold vapor in the air and are particularly suitable for people with children at home. This type of humidifier uses fast moving discs to diffuse steam and is best suited for a single room.
  • Hot steam humidifiers. They heat the water in a tank and diffuse it in the form of a mist. These are the most economical humidifiers, but they can diffuse a hot mist which can cause burns.
  • Ultrasonic humidifiers. They use vibrations to diffuse moisture into the air. Since they can produce hot and cold steam at the same time, they are perfect for homes with children. Choose the one that meets your needs and that is suited to the volume of your room. Also note that their cost varies depending on their size and available options.
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Step 2. Read the instruction manual for your device

Air humidifiers are available in different models with specific adjustment and maintenance instructions for each device. It is important that you carefully read the instructions that came with the humidifier you purchased.

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Step 3. Assemble your air humidifier if necessary

Using the instructions for use, assemble the parts that must be assembled before you can use your humidifier. These can be wheels to facilitate the movement of the device, basic parts or settings specific to your personal preferences (such as the opening diameter of the vaporizer).

Part 2 of 2: use the air humidifier

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Step 1. Rinse the tank

Before using the air humidifier, remove the tank and wash it with water and mild soap. This will remove residues from the manufacturing process and prevent you from inhaling them once the machine is running.

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Step 2. Pour water into the tank

Once the tank is clean, pour distilled water inside. Some air humidifiers can be used with tap water, but distilled water has the advantage of not having any of the additives found in tap water. There should be a mark indicating the recommended water level on the tank. You just need to fill it up to that mark.

If a filter needs to be added to the water, now is the time to do it

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Step 3. Install your humidifier

Your humidifier should be on a flat, high surface, at least 30 cm from the walls. Choose a high spot with nothing underneath (like on a dressing table).

Do not place your air humidifier under a shelf or next to papers or curtains. It could moisten the surrounding objects

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Step 4. Turn on your air humidifier

Plug in and turn on your device. Some air humidifiers have buttons to change their settings to suit the user's personal preferences. If you don't know what settings to apply or what the buttons mean, read the manual.

  • Some air humidifiers have a small slot for things like essential oils or ointment. Now is the time to add them if you want to use them. However, if your device does not explicitly mention its compatibility with these items, you should not use them.
  • The recommended humidity level is between 30 and 50%.
  • When not in use, turn off the air humidifier. It should not be turned on in an empty room.
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Step 5. Regularly clean your air humidifier

An air humidifier should be cleaned at least twice a week if you use it on a regular basis. This will prevent the build-up of bacteria in the device and in the water. If you only use it infrequently, you will still need to clean it thoroughly, as bacteria and mold can appear between uses.

Water and a mild soap will do for basic cleaning, but hydrogen peroxide and white vinegar will also help kill bacteria


There is no evidence of the harmful effects of tap water used in air humidifiers on health. Distilled water is simply a healthier alternative that causes fewer complications


  • Do not allow moisture to spread around your device to prevent mold growth.
  • Young children, the elderly and people with lung problems are more exposed to airborne bacteria. It is important that humidifiers used in their presence are cleaned properly and on a regular basis.

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