Xiaomi vacuum cleaners are some of the most popular cleaning assistants due to their combination of power, compactness and smart features. But even the most advanced equipment requires regular maintenance, especially when it comes to filtration systems. Clogged filters not only reduce suction efficiency by 30-50%, but can also cause the engine to overheat and the vacuum cleaner to fail after 6-12 months of active use. In this article, we will discuss how to properly clean the different types of filters in Mi Robot Vacuum, Dreame and Viomi models, so that the equipment will last longer.
Many users make critical mistakes: flushing HEPA- filters under running water (which destroys their structure), drying filters with a hair dryer (the risk of deformation), or ignoring cleaning the cyclone separator (the main βvacuum collectorβ). We have compiled current 2026 recommendations, including hidden nuances that are not written in the official instructions. For example, why the vacuum cleaner begins to smell worse after washing the filter or why the motor filter in Dreame V12 requires replacement every 3 months, not once a year, as the manufacturer claims.
Types of filters in vacuum cleaners Xiaomi: what and why to clean
Xiaomi vacuum cleaners use up to three types of filters, each of which performs a different function, and their location and material depend on the model, but the general principle of operation is the same.
- π The cyclone filter (separator) is the first barrier in the way of debris, responsible for separating large particles (dust, wool, hair) from the air flow. In the Mi Handheld Vacuum and Dreame models, the T30 is a plastic container with cone walls.
- π§Ή HEPA- filter β captures microparticles (allergens, bacteria, pollen) up to 0.3 ΞΌm in size, comes in two variants: standard (can be washed) and coal (replacement only). For example, Viomi V3 uses HEPA H13, which traps 99.97% of contaminants.
- β‘ Motor filter (engine protection) -- prevents dust from entering the turbine -- usually a dense sponge or syntepon layer -- in Dreame V11 and Mi Robot Vacuum-Mop 2 Pro, this filter is hidden under the lid next to the engine.
It is important to understand that contamination of one filter accelerates wear of the others. For example, if a cyclone separator is full of wool, the air passes at a slower rate and the HEPA- filter becomes clogged with microparticles faster. Manufacturers recommend cleaning the filtration system after every 5-10 cleaning, but in practice the frequency depends on the conditions:
| Conditions of operation | Recommended cleaning frequency | Signs of pollution |
|---|---|---|
| Apartment with 1-2 tenants, laminate / tile | 1 time 2-3 weeks | Weak smell of dust when working |
| House with animals (dog/cat) | After every cleaning. | Visible coat on filters, reduced power |
| Construction repairs (plaster, cement) | After each use | The vacuum cleaner is "choking up," overheating. |
| Allergic in the house | 1 time per week + replace HEPA every 6 months | Increased allergy symptoms after cleaning |
If you notice that Xiaomi vacuum cleaner has become louder, heats up longer or leaves dust on the floor, this is a sure sign that filters need urgent cleaning. Some models (for example, Dreame T20) have built-in diagnostics: when critical pollution appears on the screen, an E3 or E4 error appears.
Preparation for cleaning: what you need and safety measures
Before you start cleaning, prepare everything you need, and the wrong tools or materials can damage filters, especially HEPA.
- π§Ό Warm water (not higher than 40Β°C) β hot water deforms plastic and adhesive filter layers.
- 𧴠Soft detergent (like dishwashing) -- no abrasives and no bleach. Fairy or Ecover is fine.
- 𧽠Soft brush (tooth or bottle cleaning) β hard brushes tear the HEPA- filter fibers.
- π¬οΈ Cold-blown dryer - for accelerated drying (but not hot air!).
- π¦ A vacuum cleaner or compressed air cylinder to remove dust from hard-to-reach areas.
Also, prepare your workspace: spread out newspapers or a towel so you don't get dirty. Never clean the filters in the bathroom or in the kitchen -- microparticles of dust can settle on dishes or food. Better do it on the balcony or in a well-ventilated room.
β οΈ Warning: If your Xiaomi vacuum cleaner has a carbon HEPA- filter installed (e.g., Mi Air Purifier or Viomi V2), it cannot be washed! Coal loses adsorption when it comes into contact with water.
Before removing the filters, be sure to disconnect the vacuum cleaner from the network (if it is a network model) or take out the battery (from robot vacuum cleaners). In some models (for example, Dreame W10), filters are blocked by latches - do not use force to avoid breaking the mounts. If you are not sure how to disassemble the vacuum cleaner, watch the video instructions for your model on the official Xiaomi YouTube channel.
βοΈ What to do before cleaning filters
Step-by-step: how to clean the HEPA- filter
The HEPA- filter is the most delicate element of the system, and it cannot be rubbed with hard sponges, twisted or dried in direct sunlight.
- Removal: Most Xiaomi HEPA- models have the filter behind the cyclone separator. For example, Mi Handheld Vacuum uses the 1. Press the open button for the garbage container. 2. Remove the cyclone filter. 3. Pull the tongue of the HEPA- filter (usually white or gray).
- Dry cleaning: Remove large dust particles with a vacuum cleaner (at minimum power!) or a compressed air cylinder. Keep the balloon 10-15 cm away so that the filter is not torn with a jet.
- Wet cleaning (only for washing) HEPA!). Pour warm water into the basin (maximum 40)Β°C) and add 2-3 drops of detergent. Load the filter for 10-15 minutes, then gently clean with a soft brush in the direction of the folds (not across!). Don't rub too hard - fibers HEPA tear.
- Rinse and dry. Wash the filter under a weak stream of water until the foam is washed away. Shake off the excess water (don't twist it!) and leave it to dry for 24 hours in the shade. You can only accelerate drying with a hairdryer in cold mode.
If the filter has deformed or left a dent after drying, it is a sign that it is time to replace it. In the Dreame and Viomi models, the original HEPA- filters serve 6-ZXZ-12 months, but in intensive use (for example, cleaning after repair), the period is reduced to 3 months.
β οΈ Warning: After washing the HEPA- filter in the first 1-2 days, the vacuum cleaner may produce a slight chemical odor. This is normal, so the residues of the detergent weather. If the odor is not gone after 3-4 days, the filter should be replaced.
In robot vacuum cleaners (e.g. Mi Robot Vacuum-Mop 2), the HEPA- filter is often combined with a motor filter, in which case it should be cleaned with a sponge, but without immersion in water - only with a wet wipe.
π‘
To extend the life of the HEPA- filter, vacuum it at minimum power with a furniture nozzle before wet cleaning. This will remove up to 70% of the dust without water.
Cleaning of cyclone filter and separator: remove blockages
A cyclone filter (or separator) is the heart of a vacuum cleaner, where the bulk of the debris is separated from the air. In Xiaomi models, it is usually made in the form of a plastic cone with grilles or blades, and ignoring it reduces the suction power by 40-60%, as blockages disrupt aerodynamics.
How to clean properly:
- Disassembly: In hand vacuum cleaners (like the Dreame T30), the cyclone filter is removed along with the garbage container, and in Viomi V3, you remove the top cover and remove the plastic module.
- Dispose of debris. Shake the large debris in the urn. Use a toothpick or compressed air to remove dust from the cracks. Don't prick the holes with sharp objects, it breaks the tightness.
- Wash. Wash the filter under warm water with mild detergent. Use an old toothbrush to clean the grates. In models with a metal mesh (for example, Dreame V12), you can soak the filter for 20 minutes in soapy solution.
- Dry and assemble. Dry the filter with a dry cloth and leave for 12 hours to dry completely. Make sure all parts are dry and clean before assembly - moisture can cause short circuits.
Pay special attention to sealing gums at the joints of the cyclone filter. If they are contaminated or damaged, the vacuum cleaner will lose power due to the air sucker. In Mi Handheld Vacuum models, gums can be lubricated with silicone lubrication (for example, WD-40 Specialist) to restore elasticity.
What to do if the cyclone filter is clogged with construction dust?
Cleaning a Motor Filter: Why It Is Important for the Longevity of a Vacuum Cleaner
The motor filter (sometimes called the engine protection filter) is the last barrier in front of the turbine, it captures the smallest particles that have passed through HEPA and cyclone filters, and a polluted motor filter is the main cause of Xiaomi vacuum cleaners overheating and breaking after 1-2 years.
In most models, this filter is a dense sponge or syntepon layer hidden under the lid next to the engine, for example, in the Dreame V11 it is behind the cyclone separator, and in the Mi Robot Vacuum it is under the bottom panel.
Cleaning instructions:
- Access the filter. In hand vacuum cleaners (Dreame T20), remove the engine compartment cover (usually mounted on latches). In robot vacuum cleaners (Viomi V2), flip the device and unscrew 3-4 screws.
- Dust removal. Carefully remove the sponge or syntepon. Don't pull the wires! Remove the dust with a vacuum cleaner at minimum power or a compressed air cylinder.
- Washing (if permitted) Most of the motor filters in Xiaomi vacuum cleaners are washable. Use warm water and a soft detergent. Don't rub too hard, the sponge should remain porous.
- Dry and install. Dry the filter for 24 hours. Before installing, make sure it's free of washing agent stains, they can clog the pores.
If the engine filter is broken or lost shape, it must be replaced. In the models Dreame and Viomi original filters cost 300-800 rubles, but you can use analogues (for example, from Karcher or Philips, if the dimensions are the same).
β οΈ Warning: In vacuum cleaners with a brushless motor (e.g. Dreame V12), the motor filter cannot be washed; it can only be vacuumed or replaced; water entering the motor contacts will cause corrosion and failure.
π‘
The motor filter is the most forgotten but critical element, and pollution increases the load on the turbine by 80%, reducing the life of the vacuum cleaner by 2-3 times.
Frequent Filter Cleaning Mistakes and How to Avoid Them
Even experienced users make mistakes that cause Xiaomi vacuum cleaners to break, and here are the most common ones and how to avoid them:
- π« Hot water use: Temperatures above 40Β°C deform filter plastic and break down the adhesive layers HEPA. Always test the water with your elbow, it should be warm, but not scorching.
- π« Drying with a hot air dryer, which shrinks materials and cracks. Use only cold blower or natural drying.
- π« Cleaning filters with harsh chemicals. Chlorine, acetone or alcohol break down HEPA fibers and seals. Only mild detergents (pH 5-8) are allowed.
- π« Incomplete drying before assembly. The moist filter becomes a breeding ground for mold and bacteria. Minimum drying time is 12 hours (for HEPA 24 hours).
- π« Ignoring sealing gums. Dirty or damaged gums cause air suction and power loss, and they need to be cleaned and lubricated with silicone grease every 3 months.
Another common mistake is to clean the filters by eye, and many users wait for the vacuum to work poorly, but by then the filters are already worn out, for example, in the Mi Robot Vacuum, when the HEPA- filter is contaminated, the robot begins to "lose" in space due to the deterioration of the sensors.
If you are not sure that you will cope with the cleaning yourself, contact the service center Xiaomi. in Moscow and St. Petersburg, the cost of professional cleaning filters starts from 500 rubles.
When the filter should not be cleaned, but replaced
Not all filters are re-cleanable, and in some cases, replacing them is the only way to keep the vacuum cleaner safe, and here are the signs that the filter has run out of life:
- π HEPA- Filter: There are holes or tears. After washing, there is a persistent chemical odor. The filter is out of shape (deformed). The vacuum cleaner, even after cleaning, emits an error E3 or E4.
- π Cyclone filter: Plastics become brittle or cracked, grilles or blades break, and after washing, there is plaque (e.g. from cement dust).
- π Motor filter: Sponge crumbles when touched, filter shows traces of oil or burns, vacuum cleaner warms even after 5 minutes of operation.
The life of the filters depends on the model of the vacuum cleaner and the intensity of use. Here are tentative recommendations for replacing:
| Model vacuum cleaner | HEPA-filter | Cyclone filter | Motor filter |
|---|---|---|---|
| Mi Handheld Vacuum | Replacement every 6-12 months | You can't replace it (cleaning is enough) | Replacement every 12 months |
| Dreame T30 | Replacement every 3-6 months | Replacement for damage | Replacement every 6 months |
| Viomi V3 | Replacement every 12 months (if washed) | We can't replace | Replacement every 12 months |
| Mi Robot Vacuum-Mop 2 Pro | Replacement every 6 months | Replacement for blade breakage | Replacement every 12 months |
The original Xiaomi vacuum cleaner filters can be bought on the official website, in Mi Store stores or on AliExpress (but be careful with fakes!).
- HEPA- filter: 400-1200 rubles;
- Cyclone filter: 600-1500 rubles;
- Motor filter: 300-800 rubles.
When buying, check for compatibility with the model of the vacuum cleaner. For example, the filters from the Dreame V10 will not be suitable for the Dreame V12, even if they look the same on the outside.