Replacement of the filter in Xiaomi Mi Air Purifier: instructions with photos and tips for choosing

Xiaomi Mi Air Purifier has become an indispensable assistant in millions of homes – it effectively fights dust, allergens and harmful particles PM2.5. But even the most perfect device requires regular maintenance, and the key here is to replace the filters in a timely manner, and if you ignore this process, the cleaner will become a normal fan, or even a source of bacteria.

In this article, we will discuss all the stages of filter replacement for popular Mi Air Purifier Pro models, 2H, 3C And others, we'll tell you how to choose the original or compatible analogue, and we'll also warn you about common errors that shorten the life of the device.

1. How to know if the filter is time to change: signs and indicators

The manufacturer claims that the average filter life of the Xiaomi Mi Air Purifier is 6-12 months depending on the intensity of use and air pollution, but real-world conditions can cut this period by half.

• 🔴 The indicator on the panel flashes red or shows 0% of the filter life (in models with a display).
• 🌫️ Cleaning quality has deteriorated markedly: odors, dust or smoke are removed more slowly than before.
• 🔊 The device works louder than usual - a clogged filter makes the fan work at the limit.
• 📲 The Mi Home app will see a notification “Replace the filter” (even if it appears clean visually).

Important: In some models (for example, Mi Air Purifier) 3H) There's a hidden clock counter that takes into account not only the hours you're running, but also the air pollution, and if you live in a metropolis or near a road, the filter wears out faster than the people in cleaner areas.

⚠️ Warning: If the filter is replaced, the cleaner still shows 0% of the resource, the problem may be in the undischarged meter.

2.What filters are suitable for Xiaomi Mi Air Purifier: original vs analogues

Xiaomi releases filters for different models of cleaners, and they are not always interchangeable. 2S It's not suitable for the Pro H because of its different shapes and compositions:

Can you save on analogues? Yes, but with reservations. Cheap filters (for example, from Baseus or Xiaomi Eco System) often have:

• 🔍 Lower density HEPA-layers (worse delayed) PM2.5).
• ⚖️ Thin coal layer (weaker absorbs odors).
• 🛠️ Unreliable sealing (dust seeps past the filter).

If you decide to take a risk, choose analogues with a certificate. HEPA H13 And check the reviews on Aliexpress or Yandex Market, which often post photos of comparisons with the original. For example, Yunmi filters (a subsidiary of Xiaomi) are almost as good as in quality, but they cost 20-30% cheaper.

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Before buying a filter, check its article on the official Xiaomi website – sometimes one model of the cleaner has several modifications with different cartridges (for example, Mi Air Purifier 3 for China and the global version).

3. Step-by-step instructions: how to change the filter in Xiaomi Mi Air Purifier

The replacement process is the same for most models, but there are some nuances: we'll show the universal algorithm with the Mi Air Purifier Pro, and we'll show the differences for the other versions separately.

Step 1. Disconnect and prepare the device

Turn off the cleaner from the socket and let it stand for 10-15 minutes - this is necessary so that the dust inside the case settles and does not rise into the air when opened. Place the device on a flat surface (preferably on the floor) and remove all objects within a radius of 50 cm.

Step 2. Remove the top cover.

On most models, the lid is fixed with two latches on the sides. Carefully press them with your thumbs and pull the lid up. 3H And Max uses a magnetic lock instead of a latch -- just pull the lid with force.

Make sure the device is off the plug|Wait 10-15 minutes for dust to settle|Prepare a new filter packaging|Wear gloves (optional, but recommended)-->

Step 3: Remove the old filter

Inside, you'll see a cylindrical filter that attaches to the base. 2H It just goes up and into the 3C Max must first turn the filter counterclockwise by 10-15.°, lock-up.

Attention to dust! An old filter can be very dirty -- don't shake it or try to knock out the dust, just pack it in a garbage bag and take it outside.

Step 4: Install a new filter

Take the new cartridge out of the package and remove the protective film (if any "FRONT" — They should look towards the front of the cleaner, in circular filter models (e.g, 3C) tilt your foot in the base.

After installation, make sure that the filter is firmly sat down - there should be no gaps between it and the case, otherwise the untreated air will pass by, negating all the benefits of the device.

Step 5: Collect the cleaner and reset the meter.

Close the lid before you click (in magnet models, until you roll the lid), connect the device to the network, and then reset the filter resource counter, otherwise the cleaner will show that the cartridge is exhausted. How to do this, read the next section.

4. How to reset the filter counter after replacement

Once you have a new filter installed, the cleaner will continue to show 0% of the resource until you reset the internal counter.

• 📱 Through the Mi Home app: Open the app and select your cleaner. Go to Settings → Reset filter. Confirm action (you may need to hold the 3 second button).

Through buttons on the case (for models without Wi-Fi):

Hold the switch on 5 seconds → wait for the double beep → let go.

For manually reset firmware (rarely):

Press the power button. + a button for 10 seconds until the indicator flashes green.

If the counter is not reset, try:

1. Reboot the cleaner (remove the plug for 1 minute).
2. Update the firmware through Mi Home.
3. Contact Xiaomi Support (if warranty is in effect).

⚠️ Note: In the Mi Air Purifier models 3H The newer meter is reset automatically when the filter is replaced, but only if the cartridge is original with the new filter. NFC-Analogs without a chip require manual reset.

5 Frequent Filter Replacement Errors and How to Avoid Them

Even experienced users sometimes make mistakes that lead to breakdowns or reduced cleaning efficiency.

Another common problem is the extraneous sounds after the replacement (squeaking, knocking), usually meaning that the filter is crooked or the case has got debris.

1. Turn off the device.
2. Remove the cover and check if there are any foreign objects inside.
3. Make sure the filter sits flat and does not touch the fan blades.

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If after replacing the filter, the cleaner began to work louder than before, most likely, you bought an analogue with a denser one. HEPA- It's normal -- it creates more air resistance, but it also cleans more efficiently.

6.How to prolong the life of the filter: tips for operation

The average filter life can be increased by 20-30% if you follow these recommendations:

• 🌿 Vacuum the prefilter (net outside) regularly - this will reduce the load on the air. HEPA. Do this once every 1-2 weeks with a vacuum cleaner at minimum power.
• 🚫 Do not place a cleaner near dust sources (carpets, building materials, open windows in windy weather).
• 🕒 Use a timer - do not leave the device to work around the clock unnecessarily. Optimal: 4-6 hours a day in automatic mode.
• 🌡️ Avoid high humidity – if the room is humid (above 60%), the carbon layer of the filter loses its properties faster.

In models with a laser dust sensor (for example, Mi Air Purifier Pro H), you can turn on the "Eco" mode in the Mi Home application. In this mode, the device adjusts the power itself, reducing filter wear.

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If you smoke in a room where the cleaner is, the filter will last no more than 3-4 months, regardless of the model. Consider the option with a carbon prefilter (sold separately) - it partially neutralizes nicotine and tar.

7.Where to buy a filter for Xiaomi Mi Air Purifier: proven options

Xiaomi’s original filters can be bought in a number of places, but the prices and warranties are very different:

• 🛒 Official Xiaomi store (mi.com): Pros: 100% original, 6-month warranty.Cons: frequent supply disruptions, high price.
• 🌍 Aliexpress (official stores Xiaomi Global Store or Yunmi Flagship Store): Pros: cheaper by 15-20%, frequent discounts. Cons: delivery of 2-4 weeks, the risk of running into a fake from unofficial sellers.
• 🏬 Yandex Market / Ozon / Wildberries: Pros: fast delivery, you can choose with self-delivery. Cons: high price, many dealers.
• 🔧 Xiaomi Service Centers: Pros: you can check compatibility before buying. Cons: limited range, not all cities have.

If you decide to take an analogue, pay attention to the shops:

• Baseus (on Aliexpress) - inexpensive, but high-quality filters.
• Levoit – Suitable for some Xiaomi models (check compatibility).
• Xiaomi Eco System is a semi-official analogue, almost like the original.

Before buying, always check:

1. Compatible with your cleaner model (see article!).
2. Availability of a certificate HEPA H13.
3. Reviews of the photo (especially comparisons with the original).

FAQ: Frequent questions about changing the filter in Xiaomi Mi Air Purifier