How to Clean Xiaomi Air Humidifier: A Complete Guide with Photos and Tips

Why cleaning Xiaomi moisturizer is not just a recommendation, but a necessity

Xiaomi’s humidifier (whether it’s the Smartmi Air Humidifier 2, Mi Air Humidifier Pro, or the budget MiJia Humidifier CA1) is not just a household appliance, it’s a device that directly affects the air quality of your home, and if you think you just pour distilled water into it and wipe the case from time to time, you’re wrong.

Within the tank and on the working elements of the humidifier, mineral deposits accumulate over time (if you use tap water), biofilms of bacteria form, and even black mold can appear, and these pollutants not only shorten the life of the device, but also spray with the vapor into the air you breathe, consequences? Allergies, respiratory irritation and unpleasant smell in the room.

The manufacturer recommends that you clean the Xiaomi humidifier at least 1 time every 2-3 weeks with regular use. But how to do it correctly so as not to damage the membrane, filters or electronic components? In this article, step-by-step instructions, proven tools and answers to frequent questions.

What Xiaomi humidifier models require a special approach to cleaning

Not all Xiaomi humidifiers are cleaned the same way, depending on the type of device and its design.

• 💧 Smartmi Air Humidifier 2, Mi Air Humidifier: have a membrane that cannot be cleaned with abrasives or hard brushes, requiring delicate care.
• 🌀 Vapor humidifiers (MiJia Humidifier CA1): These are equipped with filters that not only need to be cleaned, but also regularly replaced (every 3-6 months).
• 🔥 Smartmi Air Humidifier Pro: has a heating element that requires removal of scale by special means.
• 🌿 Xiaomi Mi Air Humidifier with Aroma Diffuser: The essential oil container needs additional cleaning to avoid mixing odors.

If you’re not sure what your model is, look at the sticker on the bottom of the device or in the Mi Home app (under Devices → [Your Humidifier] → Settings → Information) A wrong cleaning approach can cause a breakage — for example, if you wipe an ultrasonic membrane with alcohol, it will lose its properties.

What you need to clean: safe tools and tools

Before you start cleaning, prepare everything you need. Never use Xiaomi for humidifiers:

• ❌ Abrasive powders or pastes (e.g. Pemoluks)
• ❌ Chlorine-containing agents (type of Whiteness)
• ❌ Hard metal brushes or sponges
• ❌ Concentrated acids (acetic essence, citric acid in large doses)

Here is what can and should be used:

For models with filters (for example, MiJia Humidifier CA1), you will need an additional spare filter - it must be changed every 3-6 months, even if it looks clean. You can buy original filters from the official Xiaomi store or on AliExpress (see model code, for example, W102901863 for CA1).

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If your humidifier has an ion-exchange resin cartridge (e.g. in Smartmi Air Humidifier 2), it can be regenerated by soaking it for 2 hours in a salt solution (2 tbsp per 1 liter of water) and extending the life of the cartridge by 1-2 months.

Step-by-step: how to clean the Xiaomi humidifier at home

Now, to the process itself, before cleaning, be sure to disconnect the device from the network and drain all the water.

1. Remove the top cover, remove the water tank and separate all removable parts (filters, aromacapsule, if any). In models like Smartmi Air Humidifier 2, you also need to carefully remove the cartridge with the membrane - pull by a special loop.
2. Fill the tank with warm water (not boiling water!) and add one of the means: 🍋 1 tbsp citric acid per 1 liter of water - to remove scale 🥛 2 tbsp baking soda - to disinfect and remove odors 🧽 A few drops of liquid soap - for general cleansing

Leave for 30 to 60 minutes, then rinse with running water and wipe with a soft cloth.

Membrane cleaning (for ultrasonic models)

The membrane can only be cleaned with a soft cloth or cotton swab dipped in water or a weak acetic solution (1:3). Don't rub! Easy bloating movements are enough. If the membrane shows white plaque, soak it for 10 minutes in a solution of citric acid (1 tsp per glass of water).

Disinfection

For complete disinfection, wipe all the inner surfaces with a solution of hydrogen peroxide (3%) or chlorhexidine (0.05%). Pay special attention to the corners and joints - mold most often accumulates there.

Assembly and test run

Wash all the parts with running water, dry (not in direct sunlight!) and assemble the device. Pour distilled or boiled water and turn it on for 10 to 15 minutes. If you get an unpleasant smell, repeat the cleaning.

Turn off the socket|Pour water|Prepare the means (vinegar/citric acid)|Take a picture of the location of the parts (if you are disassembling for the first time)|Check the integrity of the membrane/filters-->

If the humidifier starts to work louder or the steam goes unevenly after cleaning, most likely the membrane is damaged. In this case, contact the Xiaomi service center - self-repair can aggravate the problem.

How to remove scale and white plaque: 3 proven ways

Scale is a major problem in humidifiers, especially if you use tap water, and it forms on heating elements (in hot vapor models) and on the membrane (in ultrasonic devices).

1. Citric acid (for light and medium scale)

Dissolve 1 tbsp of citric acid in 1 liter of warm water, pour into the tank and turn on the humidifier for 1 hour in maximum performance mode. Then drain the solution, rinse the container and wipe the membrane with a soft cloth. This method is suitable for Smartmi Air Humidifier 2 and other ultrasonic models.

Vinegar solution (for persistent deposits)

Mix table vinegar (9%) with water in a 1:1 ratio, pour in the humidifier and leave for 1-2 hours. To enhance the effect, you can turn on the device for 20-30 minutes. Important! After vinegar, thoroughly rinse all the parts with running water to avoid a sharp smell on the next use.

3. Special means (for heating elements)

If you have a model with a hot steam function (for example, Smartmi Air Humidifier Pro), the scale on the heater can be removed using kettles, for example, Antinakipin or Topperr 3031. Follow the instructions on the package, but reduce the exposure time by 2 times (usually 15-20 minutes is enough).

Warning: Never use metal objects (knives, spoons) to clean the heating element - this will lead to damage to the coating and accelerated scale formation in the future.

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Use distilled or filtered water to prevent scale, and if that is not possible, add softening cartridges (e.g. Xiaomi Mi Water Softener Cartridge) to the water.

How to get rid of mold and unpleasant smell

Mold black spots and musty smells are a sign that the humidifier has not been cleaned or used contaminated water, and mold is not only dangerous for the device, but also for health, so you need to fight it right away.

⚠️ Warning: If the mold appears on the membrane of an ultrasonic humidifier, it cannot be scraped or rubbed with a hard brush, it will damage the membrane, and the device will lose performance, in which case contact the service.

Effective methods of removing mold:

• 🧴 Hydrogen peroxide (3%): Apply to the affected areas, leave for 10-15 minutes, then rinse. Repeat 2-3 times for persistent spots.
• 🍋 Soda and lemon juice blend: make a gruel, apply it to the mold, rub it with a soft sponge, and rinse it off. This is a method that works on plastic surfaces.
• 🧼 Special antiseptics: Cillit Bang Black Mold or Domestos Ultra White, dilute 1:10 with water and treat the interior surfaces.

After removing the mold, be sure to dry all the parts in the air (at least 2-3 hours). If the smell remains, pour a solution of water with vinegar (1:3) into the tank and turn on the humidifier for 30 minutes in the ventilated room.

For mold prevention:

• 💧 Change the water in your humidifier every day, even if you don't use it.
• ☀️ Dry the device after each use (leave the lid open).
• 🌿 Add 1-2 drops of tea tree essential oil to the water, which has antibacterial properties.

Frequent Mistakes When Cleaning Xiaomi Humidizers (and How to Avoid Them)

Many users make mistakes that cause the humidifier to break or deteriorate, and here are the most common ones:

Another common mistake is to keep a humidifier with water inside, so if you don't plan to use the device for more than a week, drain the water, dry all the parts, and store them in disassembly, and this will prevent mold and corrosion.

⚠️ Warning: If after cleaning the humidifier starts spitting with water or making unusual sounds (cracking, whistle), immediately turn it off and check: Correct installation of the membrane/filter. No foreign objects in the tank. Integrity of the sealing gums (they may have dried or deformed). Continuing to work in this state can lead to short circuit!

FAQ: Answers to Frequent Questions About Cleaning Xiaomi Humidizers