Which Xiaomi air purifier to choose: comparison of models 2026

Xiaomi air purifiers have long been popular with users due to their combination of affordable prices, high efficiency and integration into the smart home ecosystem. However, the range of models is constantly expanding, and choosing the best option is becoming more difficult. In this article, we will analyze the key parameters that you should pay attention to when buying, compare popular models and help determine the choice depending on the space, budget and specific needs.

Modern air purifiers not only remove dust and allergens, but also fight formaldehyde, bacteria, viruses and bad smells. But not all models are equally effective: some are better at handling large particles, others are better at gases, and others are optimized for working in a bedroom or nursery. Let's figure out how to avoid making mistakes and paying too much for unnecessary functions.

Key parameters when choosing an air cleaner Xiaomi

Before buying, it is important to determine what tasks the device should solve.

  • πŸ“ The surface area is indicated in square meters and depends on the power of the fan. Inadequate performance will lead to poor cleaning, and excess - to unnecessary noise and energy consumption.
  • πŸŒ€ Type of filter β€” HEPA (For small particles, coal (for gases and smells), photocatalytic (for decomposition of organic matter), some models support interchangeable filters of different types.
  • πŸ”Š Noise levels are critical for bedrooms and children's rooms. 30-40 dB.
  • πŸ“± Smart functions – control through the Mi Home application, voice assistants, automatic speed control according to sensors.
  • πŸ’° Cost of operation – the price of replacement filters and their resource (usually) 6-12 months of round-the-clock work).

Pay particular attention to the Clean Air Delivery Rate (CADR), which is the clean-up efficiency measure. The higher the cleaning rate, the faster the device will cope with pollution. For a standard room of 20 m2, 200-300 m3 / h is enough, and for spacious rooms it will require 400 + m3 / h.

⚠️ Warning: If you have frequent wildfires or high smog levels in your area, choose high-density carbon filter models that are better at handling fine soot and toxic gases.

The table below shows the latest Xiaomi air purifiers with key characteristics, based on official specifications and tests from independent laboratories.

ModelArea, m2CADR, m3/hTypes of filtersNoise level, dBPrice, β‚½ (pp.)
Xiaomi Smart Air Purifier 4 Lite28330HEPA + coal32–6412 000
Xiaomi Smart Air Purifier 448500HEPA H13 + coal34–6718 000
Xiaomi Smart Air Purifier 4 Pro60600HEPA H13 + coal + antibacterial33–6825 000
Xiaomi Mi Air Purifier 3H45380HEPA + coal34–6515 000
Xiaomi Smart Air Purifier 3C25320HEPA + coal30–6010 000

The Smart Air Purifier 4 series models are equipped with a temperature and humidity sensor, which allows them to be used as part of the smart home climate system. For example, the 4 Pro can automatically turn on a low-humidity humidifier (if it is connected to the same ecosystem).

πŸ“Š What is more important for you when choosing an air cleaner?
Area of coverage
Noise level
Price.
Functionality
Design

The best choice for different rooms

The same air purifier won't work for all scenarios, so let's look at the optimal models depending on the problem.

  • πŸ›οΈ Bedroom or children's room (15-20 m2): Xiaomi Smart Air Purifier 3C β€” quiet (30 dB at night), compact and budget, suitable for round-the-clock work.
  • 🏠 Living room or kitchen (30-40 m2): Xiaomi Smart Air Purifier 4 – high performance (500 m3 / h) and smart control through the application.
  • 🏒 Large apartment or office (50)+ m2): Xiaomi Smart Air Purifier 4 Pro – maximum CADR Support for multiple filters.
  • 🚬 For smokers or regions with poor environment: Xiaomi Mi Air Purifier 3H β€” reinforced carbon filter for absorption of tobacco smoke and chemical fumes.

If you have pets in the room, look for models with a prefilter for wool (for example, 4 Pro). It traps large particles, extending the life of the main body. HEPA-filter.

⚠️ For allergic patients critical filtering class HEPA. Optimally β€” H13, which captures 99.97% of particles up to 0.3 ΞΌm (pollen, dust mites, mold spores).

Which is better: Xiaomi or alternatives?

Xiaomi air purifiers are often compared to appliances from other brands such as Philips, Dyson or Sharp. Xiaomi's main advantages are:

  • πŸ’° Price: 1.5-2 times cheaper than analogues with similar characteristics.
  • πŸ“± Integration into the ecosystem: working with Mi Home, Google Assistant, Alice.
  • πŸ”„ Easy maintenance: Replaceable filters are available in official stores.

However, competitors have their advantages:

  • πŸ”¬ Dyson: bladeless fan, quieter work, but the price is 3-5 times higher.

If the budget is limited and the priority is price/quality, Xiaomi remains one of the best options. For maximum cleaning (for example, asthma), it is worth considering specialized models from Philips or Blueair.

πŸ’‘

Before buying, check whether there is an official warranty in your region. Some Xiaomi models (such as the 4 Pro) may be delivered to Russia unofficially, which will complicate service.

How to save on operation?

The cost of owning an air purifier is not only the price of the device, but also the cost of filters and electricity.

  1. Buy filters in bulk: original filters for Xiaomi are often sold in sets of 2-3 pieces at a discount of up to 30%.
  2. Use compatible analogues: for example, 3M or HEPA-Filter filters are 20-40% cheaper than the original ones, but check the certificates.
  3. Set up a schedule: in the Mi Home app, you can set the device to work only during peak pollution hours (for example, morning and evening).
  4. Regularly clean the prefilter: vacuum cleaner or brush - this will prolong the life of the main filter.

The average life of the filter is 6 months, but with proper care it can be extended to 9-12 months. For example, in Xiaomi 4 Pro there is a clogging indicator that will tell you when it is time to replace the filter.

Check the clog indicator once a month |

Clean the prefilter with a vacuum cleaner every 2 weeks |

Ventilate the room before turning on the device |

Store spare filters in sealed packaging-->

Frequent errors in selection and use

Even experienced users sometimes make mistakes that reduce the efficiency of the air purifier.

  • 🚫 Incorrect location: the device should be located at a distance of 30-50 cm from walls and furniture for free circulation of air!
  • πŸ”„ Constantly running at top speed: This wears out the filters quickly and increases noise.
  • 🌬️ Closed windows 24/7: For full cleaning, you need to periodically ventilate the room (at least) 10 minutely).
  • πŸ”Œ Ignoring firmware updates: new versions often improve sensor algorithms.

Another common problem is buying a device that is too powerful for a small room, which leads to excessive noise and electricity consumption, for example, Xiaomi 4 Pro is designed for 60 m2, and in a room of 15 m2 it will work at the minimum speed, which is suboptimal.

Why does the air cleaner smell like plastic after you buy it?
The new appliance can emit a faint chemical odor β€” that's normal for the first 1 to 3 days of operation. To eliminate it faster, turn the cleaner on to maximum power in a well-ventilated room. If the smell persists for longer than a week, contact the service center β€” filter failure is possible.

Can I use a Xiaomi air purifier without a filter?
No, it's going to break the fan because it gets dust into the machine, and even if the filter is clogged, it's better to replace it than to operate it without protection.
How often should filters be changed?
The life of the device depends on the intensity of use and the level of air pollution: on average: Prefilter: cleaning every 2-4 weeks; HEPA + carbon filter: replacement every 6-12 months; the device will notify you of the need for replacement through an indicator or notification in the application.
Is Xiaomi suitable for fighting viruses?
Models with HEPA H13 (e.g., 4 Pro) capture particles up to 0.3 ΞΌm in size, including some viruses, but additional measures (UV lamp, ozonation) are needed to ensure disinfection.
Can I use the air cleaner all night long?
Yes, if you choose a model with night mode (noise level up to 30 dB), for example, Xiaomi 3C or 4 Lite are suitable for sleep, the main thing is to keep the filters clean.
How to reset the air cleaner Xiaomi to factory settings?
Hold the power button 5-10 seconds to the beep. In some models (such as the 4 Pro), the reset is available via the menu in the Mi Home app: Device β†’ Settings β†’ Reset to factory

πŸ’‘

For most apartments, the Xiaomi Smart Air Purifier 4 is optimal – it provides a balance of price, performance and smart features. If the budget is limited, 3C or 4 Lite will be a good alternative for small rooms.