How to wash the Xiaomi air humidifier inside: full instructions with photos and tips for care

Xiaomi’s humidifier is an indispensable tool in the fight against dry air, especially in the heating season or hot summer, but even the most technologically advanced device requires regular maintenance: Over time, scale, bacteria and mold accumulate inside the tank and on the membrane, which not only spoil the operation of the device, but can also harm health. In this article, we will discuss how to properly wash the Xiaomi humidifier inside, what products to use for different models (Smartmi Air Humidifier). 2/3, Mi Air Humidifier Pro, and why regular tap water isn’t enough.

Many users make critical cleaning mistakes, such as using aggressive chemicals that break down the membrane, or neglecting to treat hard-to-reach areas, and we've put together proven methods approved by the manufacturer, and we've added life hacks from experienced owners, and you'll learn how often you need to wash the humidifier to last longer than the warranty period, and what to do if there's already a black plaque or an unpleasant smell inside.

Why Xiaomi Humidifier Should Be Washed Inside: The Consequences of a Lack of Care

If you ignore regular cleaning, the humidifier becomes a hotbed of dangerous microorganisms. The tap water contains calcium and magnesium salts that settle on the walls of the tank and the membrane as white plaque. Over time, it compacts, reducing the efficiency of the device by up to 40% (data from tests in Xiaomi's lab).

And even worse, biofilm, a collection of bacteria and fungi that multiply in a humid environment, and when you turn on the humidifier, the microparticles of this film enter the air and can cause:

• 🤧 Allergic reactions (sneezing, itching in the nose, redness of the eyes).
• 💨 Exacerbation of asthma or bronchitis - especially dangerous for children and the elderly.
• 🦠 Respiratory infections due to inhalation of Legionella (bacteria that multiply in standing water).

Owners of Xiaomi Smartmi Air Humidifier 2 often complain about the appearance of black dots on the membrane - this is a mold that has already penetrated into the material. In such cases, a conventional wash will not help: you will need to replace the membrane or completely disinfect with vinegar / peroxide (for more details, see the section on deep cleaning).

⚠️ Attention: If the humidifier starts to smell damp or "swamp", stop using immediately! This is a sign of active bacterial reproduction. Water washing here is useless - you need disinfection.

What you need to clean: a list of tools and tools

Before you start the wash, prepare everything you need. For basic cleaning (1-2 times a week) will be enough soft sponge and water, but for deep (once every 1-2 months) will require special tools.

❌ Prohibited products: abrasive powders (scratches plastic), bleach (destroys the membrane), alcohol (dries seals). Also, do not use hard brushes - they damage the antibacterial coating of the tank (if you have one in your model).

Step-by-step: how to disassemble and wash the Xiaomi moisturiser inside

The cleaning process varies from model to model, but the overall layout is the same. Consider the Smartmi Air Humidifier 2, one of the most popular models, and for other devices (Mi Pro, MiJia), the differences are minimal (usually different than the way the membrane is removed).

Disconnect the humidifier from the socket and drain the water|Remove the tank from the base|Remove the membrane (if any) according to the instructions|Prepare detergent and tools-->

Step 1: Disassembly of the device

1. disconnect the humidifier from the mains and drain the remaining water through the nose of the tank (the Smartmi 3 models have a special valve for draining).

2. Press the tank retainer button (usually side-sided) and carefully remove the top. In touch-controlled models (such as the Mi Air Humidifier Pro), the tank is removed by moving upwards.

3. Remove the membrane (if it's removable). In Smartmi 2, you have to pull the plastic handle in the center of the base. In MiJia Humidifier, the membrane is attached to the latches, press it with a screwdriver.

Step 2: Cleaning the tank

1. Fill the tank with warm water (not higher than 40).°C) and add the selected means:

- For scale: 20 g of citric acid per 1 liter of water.

- For disinfection: 100 ml of hydrogen peroxide 3% per 1 liter.

For mold: 1:1 solution of vinegar with water (only for models without ultrasonic membrane!).

2. Close the tank with the lid and shake it carefully so that the solution hits all the walls. Leave for 30 to 60 minutes.

3. Use a soft sponge or silicone brush (for example, for bottles) to clean the bottom and corners. In Smartmi 3 models, pay special attention to the ventilation holes - there is the most dirt accumulating.

Step 3: Cleaning the membrane and base

The membrane is the most delicate element, and it can't be rubbed with hard objects or soaked in aggressive solutions.

• 🍋 For scale: place the membrane in a solution of citric acid (10 g per 0.5 liters of water) for 20 minutes, then rinse under running water.
• 🦠 For disinfection: wipe the membrane with a cotton disc dipped in chlorhexidine 0.05%, then rinse.
• ⚠️ Never use vinegar for ultrasonic membranes (found in Smartmi) 2/3) — It destroys the piezo elements!

Wipe the base of the humidifier with a wet microfiber, paying attention to the contacts of the water level sensor (they can be cleaned with a cotton swab dipped in alcohol).

Step 4: Assembly and Test Launch

After cleaning:

1. Wash all parts under running water (especially if you used vinegar or peroxide).
2. Dry the tank and membrane in the air for 10-15 minutes (do not use a hair dryer or battery!).
3. Collect a humidifier and pour distilled water (or boiled if not distilled).
4. Turn on the device for 5-10 minutes in maximum power mode to wash away the residues of detergents.

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If the humidifier starts to make noise or vibrate after cleaning, check if the membrane is properly installed. In Smartmi models, it should lie convex side up and fit tightly to the base.

Cleaning Frequency: Care Schedule for Different Conditions

Xiaomi recommends washing the humidifier every 3-5 days, but in practice, the frequency depends on the hardness of the water and the intensity of use.

🔍 How do you determine water hardness? If after 2-3 days of use, the walls of the tank have a white coating, hard water, in which case you should immediately switch to distilled or use softening cartridges (for example, Xiaomi Smartmi Filter).

❄️ In winter, when the humidifier is working around the clock, cleaning should be done more often.

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The use of distilled water reduces the frequency of deep cleaning by 2-3 times and extends the service life of the membrane to 5 years (versus 1-2 years when using tap water).

Top.-5 Mistakes in washing Xiaomi moisturiser and how to avoid them

Even experienced users sometimes make mistakes that cause the device to break down, and here are the most common ones:

1. Use of undiluted vinegar for models with ultrasonic membrane (Smartmi) 2/3, MiJia. The acid corrodes the piezoelectric elements, and the membrane stops vibrating. ✅ Solution: Citric acid only or specialized products.
2. Drying membranes on a battery or under the sun, and high temperatures make them warp and lose their elasticity. ✅ Solution: Dry at room temperature in the shade.
3. Cleaning the tank with abrasive sponges, microcracks on the plastic become a breeding ground for bacteria. ✅ Solution: Use silicone brushes or soft tissues.
4. Soaking the base in water. In Xiaomi Smartmi, the electronic board is located close to the bottom - if moisture hits, the device can fail. ✅ Solution: Wipe the base with only a wet, well-pressed cloth.
5. Ignoring disinfection. If you just wash it with water, the biofilm will accumulate, the isoon humidifier will start to smell like a swamp». ✅ Solution: Once a month to disinfect with peroxide or chlorhexidine.

⚠️ Warning: If the humidifier starts to make a whistling sound after cleaning, it is a sign that the membrane is damaged or installed incorrectly. In Smartmi Air Humidifier 3 models, the whistle may also indicate clogging of the air filter (it must be washed under the water stream).

How to care for a moisturiser to wash less: preventive measures

Compliance with simple rules will help reduce the frequency of cleaning and prolong the life of the device:

• 💧 Use distilled or softened water, which will reduce scale by 90 percent, and boiled water at the very least.
• 🔄 Change water daily, even if the humidifier is not working. Stagnant water is the perfect environment for bacteria.
• 🌿 Add antibacterial granules (e.g. Xiaomi Smartmi Antibacterial Balls) that inhibit microbial growth for 2-3 weeks.
• 🕒 Do not turn on the humidifier around the clock at most. Optimal mode: 60-70% humidity with breaks for 1-2 hours.
• 🏠 Install the device away from walls and furniture (at least 30 cm) this will improve air circulation and reduce the risk of mold.

💡 Lifehack for models with hygrostat (Smartmi 3, Mi Pro): set up automatic humidity maintenance at 50-60%. This will reduce the load on the membrane and reduce water consumption, and therefore the frequency of cleaning.

How to replace the original funds: budget analogues

Branded humidifier cleaners (such as Xiaomi Smartmi Cleaning Tablets) are expensive, but they can be replaced by affordable analogues:

⚠️ Important: Do not use baking soda – it leaves microcrystals that then enter the air. Also avoid essential oils (unless they are designed for humidifiers): they clog the membrane and can cause allergies.

For models with ionization (Mi Air Humidifier Pro) are not suitable products with chlorine - they neutralize the action of the ionizer. Instead, use silver water (you can cook yourself with silverware).

FAQ: Frequent questions about washing Xiaomi humidifiers