Xiaomi air humidifiers are among the most popular devices in the brand’s smart home lineup. They effectively maintain optimal humidity levels but require regular maintenance. Lack of cleaning leads to scaling, mold and bacterial plaque, which not only shortens the life of the appliance, but can also harm health. In this article, we will discuss in detail how to clean the Xiaomi Humidifier humidifier (including Smartmi Air Humidifier models, Mi Air Humidifier Pro and others), which products can be used and what to do categorically not.
Many users are facing problems: the device starts to spray water poorly, there is an unpleasant smell or a white coating on the furniture, most often it is a contamination of the membrane, filter or tank, we have collected proven cleaning methods that will help return the device to its original efficiency and avoid costly repairs, and we will tell you how often you need to perform the procedure and what mistakes 90% of owners make.
Why Xiaomi Humidifier Should Be Cleaned Regularly
The humidifiers work with water, which means they create the perfect environment for microbial reproduction, and even if you use distilled water, over time, the walls of the tank and the membrane form:
- 🧂 Mineral deposits (scale) - remain after evaporation of water, especially if it is hard.
- 🦠 Bacteria and mold – develop in a warm, humid environment, can cause allergies and respiratory diseases.
- 🟢 Green plaque - the result of the vital activity of algae, often appears with rare cleaning.
- ⚪ White powder – settles on furniture and floor, if the water is high in calcium and magnesium salts.
Xiaomi recommends cleaning the humidifier every 3-7 days (depending on the intensity of use).If neglected, the consequences can be serious:
- 🔊 Increased noise – scale on the ultrasonic membrane makes it vibrate more strongly.
- 💨 Decreased performance – polluted filters and nozzles reduce the amount of sprayed vapor.
- 🚨 Breakdown of the device - lime plaque can disable heating elements (in models with the function of warm steam).
Ultrasonic spray models (such as the Xiaomi Smartmi Air Humidifier 2 or Mi Air Humidifier Pro) are particularly vulnerable to the membrane, which is sensitive to hard water and requires careful handling, and if you notice that the steam has become less intense or the smell of dampness has appeared, it is a sure sign that it is time to clean the device.
What you need to clean: a list of tools and tools
Before you start the procedure, prepare everything you need. Do not use aggressive chemicals (for example, Domestos or Whiteness) - they can damage plastic and rubber seals.
| Tool/tool | What do you need? | The alternative |
|---|---|---|
| Acetic acid (9%) | Scaling and disinfection | Citric acid (2 tbsp. l. per 1 liter of water) |
| Soft sponge or brush | Cleaning the tank walls | Toothbrush (for hard-to-reach places) |
| Microfiber wipe | Surface cleaning without divorce | Paper towels |
| Cotton swabs | Cleaning narrow holes and nozzles | Ear sticks or a thin brush |
| Distilled water | Post-cleaning flushing | Boiled or filtered water |
For models with removable filter (for example, Xiaomi Smartmi Air Humidifier) 2S) The original filters can be purchased from the official Xiaomi store or AliExpress. The average filter life is 3-6 months.
If you have an aromatic capsule in your humidifier, you should also wash it separately, and a soap solution (without abrasive particles) is suitable for this. Under no circumstances do not use essential oils directly, they can damage the plastic and cause allergies when sprayed.
⚠️ Attention: Some users advise cleaning the Coca-Cola humidifier with a Sprite. This is strictly forbidden! carbonated drinks contain orthophosphoric acid, which corrodes the sealing gums and can disable the ultrasonic membrane.
Step-by-step: how to clean the Xiaomi humidifier
The cleaning process can be divided into several stages.We will look at a universal scheme suitable for most Xiaomi models, including Mi Air Humidifier, Smartmi Air Humidifier, and other models. 2/2S/3 Mi Humidifier CA1. If your device has specific features (such as built-in hygrostat), refer to the original instructions.
Preparation and disassembly of the device
Before you start, disconnect the humidifier from the network and drain the remaining water.
- Remove the top cover (usually it is fixed with latches or threads).
- Remove the water tank.
- If the model has a removable membrane or filter, carefully remove them.
- Disconnect the base (in some models it is attached to magnets).
And notice sealing gums, you can't rub them with hard brushes, and if the gums are elastic or cracked, they need to be replaced.
2. Cleaning of the reservoir and the base
Pour warm water into the tank (temperature not higher than 40)°C) and add:
- 2–3 tbsp. l vinegar (to remove scale), or
- 1 tbsp. l. citric acid (for disinfection).
Leave the solution for 30 to 60 minutes, then thoroughly rinse the container with a soft sponge. For hard-to-reach places, use cotton swabs. Pay special attention to:
- 🔍 The angular joints - there accumulates the most dirt.
- 💧 Hole for steam - they can be cleaned with a toothpick.
- 🔄 Ventilation grilles (if any) – dust clogs them and worsens air circulation.
Rub the base of the humidifier with a wet wipe dipped in the same solution. Do not allow liquid to enter the electronic components (board, sensors, connectors).
Disconnect from the network and drain water|Disassemble into details (reservoir, membrane, filter)|Soak in acetic/lemon solution|Wipe with a sponge and cotton swabs|Wash with distilled water|Dry all the parts in the air-->
Cleaning of the ultrasonic membrane
The membrane is the most sensitive element of the humidifier, and it can't be rubbed with hard objects or cleaned with abrasives.
- Wash the membrane under running water (without pressure!).
- Submerge it in a solution of vinegar (1:1 with water) for 10-15 minutes.
- With a soft brush or cotton swab, remove the plaque from the surface.
- Rinse thoroughly in distilled water.
If the membrane is damaged (cracks, deformity), it must be replaced. Using a moisturiser with a faulty membrane can lead to short circuits!
- Xiaomi Smartmi Air Humidifier 2 – Membrane DMF-B01.
- Mi Air Humidifier Pro - Membrane DMF-A02.
4. Disinfection and removal of odor
If you have an unpleasant odor coming out of the humidifier, you need a deep disinfection.
- Prepare the solution: 1 tsp. hydrogen peroxide (3%) per 1 liter of water.
- Pour it into a tank and leave it for 1 hour.
- Wash all the details thoroughly with running water.
- Dry in the air (do not use a hair dryer or battery!).
To prevent odor, you can add 1-2 drops of tea tree essential oil to the water (if the model supports aromatization), but remember: oils can not be poured directly into the tank - only in a special capsule!
5. Assembly and test run
After cleaning and drying, collect the humidifier in reverse order.
- 🔌 All seals are in place and not skewed.
- 💧 The tank is tightly closed (otherwise the water will leak).
- ⚡ Membrane contacts are clean and dry.
Pour distilled water and turn it on. Watch it for the first 5 to 10 minutes: the steam should be sprayed uniformly, without any extraneous noise. If the device makes a loud buzzing or doesn't turn on, the membrane is likely to be incorrectly installed or damaged.
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After cleaning, run the humidifier at maximum power for 10-15 minutes with the window open, which will help to weather the residual smells of vinegar or citric acid.
Frequent mistakes when cleaning Xiaomi moisturiser
Even experienced users sometimes make mistakes that cause the device to break down, and here are the most common ones:
- 🧼 Using chlorine detergents – they break down plastic and leave toxic fumes.
- 🔥 Boiling water for washing - can deform the tank and damage the membrane.
- 🧽 Hard brushes or metal sponges – scratch the surface, which accelerates the formation of scale.
- 🚫 Drying in a closed space - moisture does not evaporate, which leads to the appearance of mold.
- 🔌 Including without full drying - the risk of short circuit.
Another common problem is using tap water without filtration. Hard water reduces the life of the membrane by 2-3 times. If you can't buy distilled water, use filter jugs or special cartridges for humidifiers (for example, Xiaomi Smartmi Filter).
⚠️ Warning: If the humidifier starts to make a whistling sound after cleaning, it's a sign that the membrane is crooked or has been hit by dirt. Turn it off immediately and check its position.
How to extend the life of Xiaomi humidifier
Regular cleaning is only part of the care, so to make the device last longer, follow these recommendations:
- 💧 Change water daily – even if the humidifier was not used, bacteria multiply in stagnant water.
- 📅 Perform a deep cleaning once a week - this will prevent the formation of a persistent plaque.
- 🌡️ Store the device in a dry place - a humid environment contributes to the growth of mold.
- 🔄 Use the self-cleaning feature (if any) – for example, Smartmi Air Humidifier 3 has Clean Mode.
- 🛒 Buy original consumables – non-original filters and membranes often don’t meet standards.
If you live in a very hard water area, consider putting a magnetic softener on a tap or using bottled water, which will increase the intervals between cleanings and save you time.
The average life of Xiaomi humidifiers with proper care is 3-5 years, but the membrane and filters will have to be replaced more often (every 6-12 months).
| Detail | Moisturizer model | Average price (ruble) |
|---|---|---|
| Ultrasonic membrane | Smartmi Air Humidifier 2/2S | 800–1 200 |
| Water purification filter | Mi Air Humidifier Pro | 500–900 |
| Sealing gum | All models. | 200–400 |
| Aromatic capsule | Smartmi Air Humidifier 3 | 300–600 |
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Using distilled water and cleaning weekly increases the life of Xiaomi’s humidifier by 40-60%.
What can not be cleaned: prohibited methods
Some "folk" cleaning methods can irrevocably ruin the humidifier.
- 🧹 Abrasive powders (such as Pemolux) – scratching the plastic and membrane.
- 🧴 Concentrated acids (salt, sulfur) - corrodes metal and rubber parts.
- 🔥 Microwave Heating – Plastics Can Be Deformed.
- 🧼 Washing powder - leaves a film that clogs the nozzle.
- 🛠️ Knives or screwdrivers for scraping scale - the risk of damaging the membrane.
It is also not recommended:
- 🌿 Add herbal decoctions to the water (they clog filters).
- 🧴 Use air conditioners for laundry (they foam and spoil the membrane).
- 🔋 Leave the humidifier on without water (this leads to overheating).
If you doubt the safety of the method, it is better to contact the Xiaomi service center or study the official documentation. 2S There is a detailed guide (in English).