How to clean the air humidifier Xiaomi scale: a complete guide with photos and videos

Xiaomi air humidifiers are among the most popular on the market due to the combination of price, functionality and integration into the Mi Home ecosystem. V-HUMID1) They're facing a common problem: scale formation, and white plaque not only damages the appearance, but it also reduces the efficiency of the work by 30 to 40 percent, and in advanced cases, it disables the ultrasonic membrane.

In this article, 5 proven cleaning methods (including “grandmother” methods and professional tools), a table of compatibility of cleaning compounds with Xiaomi models, and instructions for preventing scale taking into account the hardness of the water in your area, special attention will be paid to the mistakes that 80% of users make when they first clean – they can lead to breakage of humidity sensors or block work through the application.

If your humidifier started to make extraneous sounds, does not spray steam well or an error code appeared on the display (for example, an error code appeared on the display, E1 or E2), The problem is probably scale, and then we'll go through step-by-step solutions for models with a tank capacity of 4 to 6 liters, including warm-vapor devices.

Why Xiaomi’s humidifier is scalable (and what it is dangerous for)

Scale is a deposit of calcium and magnesium salts that are found in tap water. When heated (in models with a warm vapor function) or ultrasonic spraying (in most Xiaomi devices), these salts crystallize and settle on:

• 🔹 Ultrasonic membrane - reduces the intensity of spraying, leads to overheating.
• 🔹 Heat element (in Smartmi Air Humidifier models) 2S) — Increases energy consumption by 25-30%.
• 🔹 Humidity sensors - distorts the readings, because of which the device works incorrectly.
• 🔹 Pipes and filters – clogs channels, leading to errors E3 or E4.

In Xiaomi humidifiers scale is formed faster than in analogues of other brands, due to two features:

1. High spray intensity – up to 300 ml / h in High mode (for comparison: Philips has the same indicator – 200 ml / h).
2. Compact design of the tank - water circulates more actively, and deposits accumulate in hard-to-reach places (for example, under the membrane).

If you do not clean the humidifier regularly, the consequences will be serious:

⚠️ Attention: 60% of Xiaomi ultrasonic humidifiers (according to service centers) are caused by scale, which destroys the membrane, and membrane replacement costs 50-70% of the cost of the new device.

How often you need to clean the humidifier Xiaomi: table on hardness of water

The purification rate depends on the hardness of the water in your area, and to find out, you can:

• 📊 Order a water test in a local laboratory (cost – 300-500 rubles).
• 🔍 View the data on the website of Rosvodokanal (if you are in Russia).
• 💧 Use the homemade. TDS-metre (e.g. Xiaomi) TDS Pen - This shows the salt level in ppm (parts per million).

Below is the recommended cleaning frequency depending on the hardness:

If you use distilled or filtered water (such as after a reverse osmosis system), cleaning may be done less often, once every 3-4 months, but even then, a monthly wash with vinegar or citric acid is recommended to prevent bacterial plaque.

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If you don't. TDS-Meter, you can assess the hardness of water by the amount of scale in the kettle: if it appears in 1-2 weeks - the water is very hard, if for a month - the average.

Preparation for cleaning: what you need and how to disassemble the humidifier

Before cleaning, disconnect the device from the network and drain the remaining water.To disassemble most Xiaomi models (Mi Air Humidifier, Smartmi Air Humidifier 2, Viomi) V-HUMID1) need to:

• 🔧 Cross screwdriver (to remove the bottom panel in some models).
• 🧽 Soft sponge or toothbrush (for cleaning the membrane).
• 🧼 Cleaning agent (vinegar, citric acid or specialized, for example, Top House).
• 📦 The capacity for soaking parts (if scale is strong).

The following is the Mi Air Humidifier Pro:

1. Remove the top cover of the tank by pulling it up.
2. Remove the tank from the base.
3. Unscrew the bottom panel (if the model provides access to the membrane). In Smartmi Air Humidifier 2, you need to press the latches on the sides.
4. Take out the ultrasonic membrane (in most models it is located in the center of the base).

In models with a warm steam function (Smartmi Air Humidifier) 2S) need to:

• 🔌 Disconnect the heating element (usually it is attached to two latches).
• 🚫 Do not touch the contacts – it can lead to oxidation.

⚠️ Attention: In Xiaomi humidifiers, the membrane is often glued to the base with silicone sealant. Don't try to peel it away, it will depressurize. Clean the membrane in place without removing it.

Is the humidifier off the socket?|Is all the water drained from the tank?|Is there a cleaning tool at hand?|Do you know your humidifier model (you need to choose the method)?-->

5 ways to clean the Xiaomi moisturiser from scale: from folk to professional

The choice of method depends on the degree of contamination and the model of the device, for example, for humidifiers with antibacterial coating (Viomi). V-HUMID1) Not suitable abrasives, but for models with a heating element (Smartmi Air Humidifier) 2S) High concentration acids should not be used.

Below are 5 proven methods, sorted by efficiency and safety:

1. Citric acid (best option for ultrasound models)

Citric acid dissolves scale without damaging the membrane and plastic, and is suitable for all Xiaomi models, including the Mi Air Humidifier and Smartmi Air Humidifier 2.

Instructions:

1. Dissolve 2-3 tablespoons of citric acid in 1 liter of warm water (temperature not higher than 40)°C).
2. Pour the solution into the humidifier tank to the maximum mark.
3. Turn on the device for 30 to 60 minutes in High mode (no spraying if the model allows it).
4. Pour the solution and rinse the tank with clean water 3-4 times.

For strong deposits, removable parts (for example, the tank cover) can be soaked in solution for 2-3 hours.

2. Vinegar (9% dining)

Vinegar is effective against scale, but has two disadvantages:

• 🔴 It can leave a persistent smell (you need to ventilate for a long time).
• 🔴 In high concentrations, silicone pads corrode (in Viomi models).

How to clean:

1. Mix vinegar with water in a 1:1 ratio.
2. Pour in the tank and leave for 1 hour.
3. Wipe the membrane and walls of the tank with a soft sponge.
4. Rinse 5-6 times with clean water, then fill the tank and turn on the humidifier for 10 minutes in Low mode to wash out the vinegar residue.

3. Special facilities (for complex cases)

If the scale is not amenable to citric acid, use professional formulations:

• 🧪 Top House (suitable for all Xiaomi models).
• 🧪 Sano Humidifier Cleaner (with antibacterial effect).
• 🧪 Karcher SC 1 (for humidifiers with a heating element).

Follow the instructions on the package.

1. Dissolve the product in water (proportions are indicated on the label).
2. Put it in the tank and leave it for 30-60 minutes.
3. Wash with clean water.

4. Mechanical cleaning (for a thick layer of scale)

If the coating is dense and does not dissolve, use:

• 🪥 Soft toothbrush - for membrane and hard-to-reach places.
• 🧽 A fine-grained sponge for the walls of the tank.
• 🧷 Plastic scraper – to remove large deposits (do not use metal!).

After mechanical cleaning, be sure to wash the device with a solution of citric acid to remove the scale microparticles.

5. steam cleaning (for models with heating function)

Suitable for Smartmi Air Humidifier 2S and other devices with the option of warm steam:

1. Pour distilled water into the tank.
2. Turn on Hot Mist mode for 1-2 hours.
3. The scale will soften - remove it with a sponge.

This method is less aggressive, but takes a lot of time.

What not to do when cleaning the Xiaomi moisturiser: 7 critical mistakes

Even experienced users sometimes make mistakes that lead to breakdowns, and this is strictly forbidden:

1. Use aggressive acids (salt, sulfur) or concentrated vinegar (70%) that destroy the membrane and plastic.
2. Cleaning with metal brushes or knives will scratch the antibacterial coating (if any) and lead to corrosion.
3. Soak the electronic unit (in Smartmi models it is located at the bottom). = warranty.
4. Use dish detergents like Fairy, and they leave a film that's then released into the air when sprayed.
5. Drying the humidifier with a hair dryer or on a battery - this deforms the plastic and seals.
6. Mix different cleaning products (for example, vinegar) + This can cause a chemical reaction with the release of toxic vapors.
7. Ignore the error codes after cleaning. E1 or E2, So you've damaged the sensor or membrane.

⚠️ Note: In the humidifier Xiaomi Mi Air Humidifier CA And the Smartmi Air Humidifier 2 membrane is covered with a silver antibacterial layer, and if it's damaged (like a hard brush), it loses its properties, and bacteria will enter the air.

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The most common cause of breakage after cleaning is water hitting the electronic unit. Always turn the humidifier upside down and let it dry naturally (at least 2 hours).

How to prevent the formation of scale: 3 working methods

Cleaning regularly is good, but it's better to prevent scale. Here's what really works:

1.Use the correct water

The best options (in terms of decreasing efficiency):

• 💧 Distilled water is ideal, but the road is about 50 rubles for 5 liters).
• 💧 Filtered water (via reverse osmosis) – removes 99% of salts.
• 💧 Boiled water is a cheap option, but it doesn’t remove all salts (it only kills bacteria).
• 🚫 Tap water is the worst choice if the stiffness is above 120 ppm.

2.Install a filter for the humidifier

Some Xiaomi models support interchangeable cartridges:

• 🔄 Smartmi Air Humidifier 2 – filter SM-ZNJS01ZHM (cost ~800 rubles, resource - 3 months).
• 🔄 Viomi V-HUMID1 — cartridge VIOMI-VHUMID1-FILTER (1200 rubles, 6 months).

Filters reduce water hardness and retain salts, but require regular replacement.

3. Add special additives to the water

In the shops of household appliances sold antinakipines for moisturizers:

• 🧪 Boneco A7417 — water softening tablets (10 pcs. ~500 rubles).
• 🧪 Stadler Form Descaler – a liquid that binds calcium salts.

It is enough to add 1 tablet or 5 ml of the product to 3-4 liters of water.

If you live in a region with very hard water (180)+ ppm), combine all three methods: filtered water + antinaquip + monthly cleaning with citric acid.

What to do if the humidifier does not work after cleaning

If, after cleaning, the device:

• 🚫 Not included;
• 🚫 Showing a mistake E1, E2, E3;
• 🚫 Not spraying steam;
• 🚫 It makes unusual sounds (squeaking, crackling);

So you've damaged one of the components, and here's how to diagnose and fix the problem.

1. Mistake E1 (membrane)

Cause: Damage to the ultrasonic membrane or water entering the contacts.

Decision:

• Disconnect the device from the network for 24 hours – sometimes the membrane “goes away” after drying.
• If the error remains - contact the service (replacement of the membrane will cost 1500-2500 rubles).

2. Mistake E2 (humidity-sensing problem)

Reason: Water or cleaning agent hit the sensor.

Decision:

• Dry the device upside down for 12-24 hours.
• If it does not help, a replacement of the sensor (cost) is required. ~2000 rubles).

3. The humidifier does not spray the vapor

Causes and solutions:

• 🔌 The membrane is blocked, see if there's any plaque left after cleaning, wipe it with a cotton swab soaked in alcohol.
• 💧 Clogged water supply channel - blow it with compressed air (for example, a canister for cleaning equipment).
• 🔋 Firmware failure – reset to factory settings (in the Mi Home app, go to Device Settings) → Reset).

If none of these methods worked, contact Xiaomi Service Center, and 90% of the time, the device can be repaired, but the cost of repair can be as high as 50-70% of the price of a new humidifier.

FAQ: Frequent questions about cleaning Xiaomi humidifiers