Why you need a Xiaomi air purifier and how to choose it
The air in modern apartments is often more polluted than street air: dust, pet hair, formaldehyde from furniture and microparticles. PM2.5 The way Xiaomi air purifiers are made from cooking poses an invisible threat to health, and they've become one of the most popular solutions because of their combination of efficiency, smart features and affordable price?
This article will help you figure out which Xiaomi air purifier is best for you: for a small bedroom or spacious living room, for allergic or cat owners, for quiet work at night or maximum performance. We tested 7 current models (including new products 2023-2026), compared them in terms of the number of models. CADR (The company also revealed hidden nuances that the manufacturer does not advertise (for example, why some models are worse at handling smells despite high levels of odor). CADR).
Spoiler: There's no universal "best" cleaner -- it depends on your priorities. But if you want a quick answer, here's the top.-3 popular among buyers:
- 🥇 Xiaomi Mi Air Purifier 4 Pro – the best balance of price and performance (CADR 500 m3/h)
- 🥈 Smartmi Air Purifier P1 — Optimal for bedrooms (quiet, compact, CADR 330 m3/h)
- 🥉 Xiaomi Mi Air Purifier 4 Lite – budget option for small rooms (CADR 280 m3/h)
Key parameters when choosing an air purifier Xiaomi
Before we compare specific models, we'll figure out what to look for — CADR (Clean Air Delivery Rate, which indicates how many cubic meters of air the device cleans in an hour. CADR use the formula:
CADR ≥ (room area × ceiling height) / 12For example, for a room of 20 m2 with ceilings of 2.7 m you need CADR at least 45 m3 / h But this is the minimum value - for effective cleaning it is better to take with a margin of 30-50%.
The second criterion is the type of filters. Xiaomi cleaners usually use a combination of:
- 🔹 Pre-filter - Detains large dust and wool
- 🔹 HEPA-filter H11–H13) — Captures 99.9% of particles up to 0.3 microns (including pollen, bacteria, viruses)
- 🔹 Coal filter – absorbs odors and gases (formaldehyde, benzene)
⚠️ Note: In budget models (such as the Mi Air Purifier 4 Lite), the carbon filter is often thinner or absent. If it is important to eliminate kitchen or tobacco odors, look for models labeled "Pro" or "Max».
Other important parameters:
| Parameter | What does it mean? | Optimal value |
|---|---|---|
| Noise level | Volume of operation at maximum speed | < 60 dB (for bedroom — < 30 dB at night) |
| Area of coverage | Maximum recommended room area | 20–30% more real area |
| Management | Control methods (buttons, application, voice) | Support for Mi Home/Google Assistant |
| Cost of filters | Price of filter replacement per year | < 3000 ₽/year |
Top.-7 Xiaomi air purifiers: comparison of models 2023–2026 garland.
We took it. 7 the most popular models available in official Xiaomi stores and on marketplaces (June) 2026 All devices support control via the Mi Home app and are Alice compatible./Google Assistant.
1. Xiaomi Mi Air Purifier 4 Pro – the best price/quality ratio
CADR: 500 m3/h | Area: up to 60 ² | Noise: 32–64 dB | Price: ~15 000 ₽
Flagship model with three-layer filter (HEPA H13 + coal-sensor and laser sensor PM2.5, It's a very high-speed cleaning system, which reduces the pollution in a room of 20 m2 in 10 minutes from red to green, and it supports automatic speed control for air quality.
- ✅ Ideal for large rooms (living rooms, kitchens)
- ✅ Precise pollution sensor (inaccuracy) < 5%)
- ❌ Noisy at maximum speed (64 dB)
- ❌ Expensive filters (~2500 ₽ complete)
2. Smartmi Air Purifier P1 — bedroom-best
CADR: 330 m3/h | Area: up to 35 ² | Noise: 22–56 dB | Price: ~12 000 ₽
Compact model with ultra-quiet night mode (22 dB) and OLED-display that shows the current level PM2.5, temperature and humidity — HEPA H12 + coal, but the thickness of the coal layer is less than that of the 4 Pro. But there is a sleep mode with automatic blackout of the screen.
⚠️ Attention: The humidity sensor in this model often overstates the reading by 10 to 15 percent. If you want accurate hygrometry, you'd better buy a separate sensor.
Xiaomi Mi Air Purifier 4 Lite – budget option
CADR: 280 m3/h | Area: up to 30 ² | Noise: 34–60 dB | Price: ~8 000 ₽
The most affordable model in the lineup, but with significant compromises: no coal filter (only) HEPA H11), It's less accurate, it's more suitable for small rooms (bedrooms, children's rooms) or as an extra cleaner in the kitchen (~1200 ₽/year).
4. Xiaomi Mi Air Purifier Pro H – for allergies and asthmatics
CADR: 500 m3/h | Area: up to 60 ² | Noise: 34–67 dB | Price: ~18 000 ₽
Improved version of the 4 Pro with dual HEPA-filter (class) H13) It's also a reinforced carbon layer (20 mm thick vs. 10 mm thick in standard models) that effectively captures even the smallest allergens (pollen, mold spores.
5. Smartmi Fresh Air Purifier SA1 — humidifier
CADR: 350 m3/h | Area: up to 40 ² | Noise: 25–58 dB | Price: ~16 000 ₽
A unique model that combines purification and humidification, equipped with a 4 liter water euphoricity and an ultrasonic sprayer, suitable for regions with a dry climate or during the heating season, minus requires regular cleaning (once every 3 days), otherwise bacteria multiply in the tank.
6. Xiaomi Mi Air Purifier 3H — large-room
CADR: 380 m3/h | Area: up to 48 ² | Noise: 34–64 dB | Price: ~13 000 ₽
The 2021 model is still relevant due to high performance and low filter price (~1500 ₽/It has a cylindrical design that better distributes airflow, suitable for offices or spacious rooms.
7. Deerma DEM-F600 — Alternative from the Xiaomi subbrand
CADR: 400 m3/h | Area: up to 45 ² | Noise: 28–55 dB | Price: ~10 000 ₽
A budget cleaner from the Deerma sub-brand (part of the Xiaomi ecosystem). HEPA-filter H12 It has an unusual square design, and the main drawback is that there is no integration with the Mi Home, only its own app.
💡
If you need a cleaner for the room > 40 m2, choose models with CADR ≥ 400 m3/h (4 Pro, Pro H, 3H). For bedrooms, the priority is noise level < 30 dB (Smartmi) P1, SA1).
Which Xiaomi Air Purifier is Best for Different Tasks?
The choice of model depends on your goals. Here are the recommendations for scenarios:
🏡 For the apartment (living room) + bedroom)
The best solution is a combination of two cleaners:
- 🔹 Mi Air Purifier 4 Pro (500 m3/h) for living room
- 🔹 Smartmi P1 (330 m3/h) for bedroom
This will provide full coverage with quiet work at night and high performance during the day.The alternative is one Pro H (500 m3/h), but it is noisier for the bedroom.
🐶 For pet owners
Priority is given to models with a washable prefilter (holds wool) and a carbon filter (removes odors).
- Xiaomi Mi Air Purifier Pro H (Double) HEPA + coal-layer)
- Deerma DEM-F600 (budget, but with a good pre-filter)
⚠️ If you have a long-haired dog or cat, clean the prefilter once every 2 weeks - otherwise it will clog and reduce the effectiveness by 30-40%.
🤧 For allergy and asthmatics
Critical:
- 🔹 HEPA-filter H13 (captures 99.97% of particles)
- 🔹 Low ozone levels (< 0.01 ppm)
- 🔹 Automatic mode with rapid reaction to pollution
Best Choice: Xiaomi Mi Air Purifier Pro H. Smartmi Fresh Air SA1 (if you need a moisturiser).
🍳 For the kitchen.
In the kitchen, the cleaner has to deal with fatty fumes and smells.
- 🔹 Xiaomi Mi Air Purifier 4 Pro (good carbon filter)
- 🔹 Smartmi Fresh Air SA1 (hydration + cleaning)
💡
Install the cleaner 1.5-2 m from the stove so that the fat does not settle on the filters too quickly, otherwise you will have to change the carbon filter every 3 months instead of 6.
👶 For the nursery.
The main criteria are:
- 🔹 Noise level < 30 dB at night
- 🔹 Block buttons (so that the child does not change the settings)
- 🔹 Air quality indicator (visual control)
Best choice: Smartmi Air Purifier P1 (quiet, with OLED-Xiaomi Mi Air Purifier Pro H (Children mode).
Determine the area of the room and multiply by 1.3 (the reserve by the size of the room). CADR)|Check for a carbon filter if odors are important.|Make sure the noise level is < 30dB for the bedroom|Compare the cost of replacing filters (1,000 to 3,000) ₽/year)|Check compatibility with your ecosystem (Mi Home, Google Home, Alice)-->
Hidden nuances: what do not tell in reviews?
Manufacturers and many reviewers are silent about some important details, and we've collected 5 little-known facts that influence choice:
1.The actual service life of filters is less than the declared
Xiaomi lists the filter life in operating hours (usually 6,000 to 8,000 hours), but does not include the degree of air pollution.
- 🔹 Clean bedroom without pollution sources – 14-16 months.
How to check the wear of the filter?
2.Laser sensors are more accurate but more expensive to maintain
Laser sensor models (4 Pro, Pro H) are more accurate at determining the level of the laser PM2.5, But their optical system requires cleaning every 6 months:
- Disconnect the device from the network.
- Remove the top cover (usually latches on the sides).
- Wipe the sensor lens with a dry lilac-free wipe.
If this is not done, the sensor will overestimate the readings by 15-20%.
3.Coal filters don't last forever
The carbon filter absorbs odors by adsorption, but over time, its pores clog and stop working, and signs that the carbon filter should be changed are:
- 🔹 The cleaner stopped coping with smells (for example, after frying fish).
- 🔹 There was a weak “chemical” smell when working.
- 🔹 In the Mi Home app, a notification has appeared Replace the carbon filter.
The average service life of a carbon filter is 3-4 months with intensive use.
4.Night mode does not always save electricity
Many people think that night mode reduces energy consumption, but this is not always the case. P1 In night mode, the device consumes 12 watts, and at 1 speed - 8 watts. This is due to the operation of the display and sensors:
- 🔹 Turn off the display lighting in the settings.
- 🔹 Use sleep only when there is high pollution.
5. Xiaomi cleaners don't kill viruses
HEPA-filters trap viruses (including coronavirus) but don't destroy them. If you want to disinfect air, look for models with a high-quality air conditioner:
- 🔹 UV lamp (e.g. Smartmi Sterilization Air Purifier).
- 🔹 Ionizer (but it produces ozone, which is harmful to asthmatics).
In standard models Xiaomi these features are not.
How to use Xiaomi air purifier?
Even the most expensive cleaner will be useless if it is not used correctly. Here are 5 rules that will increase efficiency by 40%:
1. Proper placement
Install the cleaner:
- 🔹 30–50 cm from walls (for free air circulation).
- 🔹 70–100 cm from the floor (where most contaminants are concentrated).
- 🔹 Far from heat sources (batteries, kitchen stove).
2. Regular cleaning
Clean:
- 🔹 Prefilter - once every 2 weeks (vacuum cleaner or water flushing).
- 🔹 The house - once a month (wet cloth).
- 🔹 Sensors - once every 6 months (dry napkin).
Optimal working hours
Use this:
- 🔹 Automatic mode – for continuous maintenance of cleanliness.
- 🔹 Turbo mode – only in case of severe pollution (for example, after cleaning or cooking).
- 🔹 Night mode – only when you sleep (otherwise filters wear out faster).
4. Humidity control
If the air is too dry (< 40% efficiency HEPA-The optimum humidity is 40-60%, and if necessary, use a humidifier (e.g. Smartmi Humidifier).
5. Replacement of filters on schedule
Don't wait until the cleaner stops working!
- 🔹 HEPA-filter - once 6-12 months.
- 🔹 Coal filter - once every 3-6 months.
- 🔹 Prefilter – once every 3 months (or as pollution occurs).
💡
In the Mi Home app, you can configure filter replacement notifications. To do this, go to your device settings. → Notifications → Condition of the filter.