Xiaomi Smart Air Purifier 4
Breathe clean, breathe healthy
20m² large room purification in approx. 10 minutes
Smart control | OLED display
Smart control | OLED display
32.1db(A)
low
noise*
Filter replacement reminders
48m large*
effective coverage
area
99.97% filtration
of 0.3um particles*
Dust and pollen filtration
Negative Air lonization
Air is filled with invisible
pollutants
that pose a risk to your health
pollutants
that pose a risk to your health
Impressive CADR
Purify a large 20m² room in approx. 10 minutes
Xiaomi Smart Air Purifier 4 has a Particle CADR of up to 400m³/h*, able to deliver 6660L of
purified air per minute*, and with 360° all-round air intake, whole-room air purification is
effortless.
purified air per minute*, and with 360° all-round air intake, whole-room air purification is
effortless.
Able to purify a 20m² room in approx*
10minAll-round air intake
3600Effective coverage area of
28-48m2Three-in-one filtration
99.97% elimination of 0.3μm
particles*
All-day protection for those who suffer from rhinitis and allergies. Xiaomi Smart
Air Purifier 4 protects your respiratory health by keeping the air in your home
clean and safe to breathe.
Air Purifier 4 protects your respiratory health by keeping the air in your home
clean and safe to breathe.
Pet hair
Pollen
Dust
Smoke
Dander
Cotton fibre
Protection for those prone to allergies
Pollen filtration
A hero for animal lovers
Pet hair and dander filtration
Pet odours
Cooking fumes
VOC
Formaldehyde, toluene
Other odours
Negative Air Ionization
helps keep your home fresh
Your purifier releases negative ions to keep the air fresh, helping you stay
refreshed after a hard day's work.
Just one filter for up to one year's usage
Everyday freshness with a long-lasting filter
The filter is highly efficient with a large surface area and high content of high-quality activated
carbon. Long-lasting filter performance means less replacements, with one filter lasting 6-12 months.
One-touch Auto Mode
Effective, hands-free purification
Sensitive high-precision laser sensors monitor changes in air quality.
High-efficiency purification in Auto Mode — your purifier monitors
real-time air quality and automatically adjusts purification speed.
Real-time monitoring
for timely feedback
Automatic optimisation
of purification speed
Smart control
Keep your home fresh when on the move
With support for smart control, ensure that you always return to a home filled with
clean, fresh air. Use the Mi Home/Xiaomi Home app from your smartphone to enable
purification when away from home.
Remote control
Timed on/off
Adjustable settings
Air quality
Child lock
Filter-life monitoring
Real-time air quality with the OLED display
Intuitive indoor air-quality data with the real-time PM2.5 display and colour-coded
indicator. Adjust your purification settings with the simple touch control buttons, one light
touch to fulfil your air-quality needs.
indicator. Adjust your purification settings with the simple touch control buttons, one light
touch to fulfil your air-quality needs.
Favourite mode
Night mode
Auto mode
Low
Medium
High
Fresh and clean
Low pollution
Moderate pollution
High pollution
Low-noise 32.1dB(A)* Night
Mode
For a good night’s sleep
Switch to Night Mode to turn off display luminance for no-glare, no-
noise purification. Your purifier will keep air circulating, providing you
with the perfect environment
Easy-clean air ducts
Clean your purifier from the inside out
Unscrew and remove the grille for easy access to the fan blades and air ducts. Easy
cleaning for the inside of your purifier to prevent secondary pollution.
*Make sure the device is switched off before taking any of the following actions.
Step 1
Unscrew and remove the grille
Step 2
Using a soft cloth, clean the air ducts and the fan blades
Step 3
Screw the grille back into place
Pick it up, put it down
Compact and portable
The difference between Xiaomi's High
Efficiency Filter and conventional HEPA Filter
Combining two filter technologies: Electrostatic charge and mechanical filtration, Xiaomi's High
Efficiency Filter media can remove 99.97% of airborne particles of 0.3 micrometers in size and
traps dust, PM 2.5, pollen, pet dander, smoke and tiny particles.
Compared to a conventional HEPA filter, Xiaomi's High Efficiency Filter allows the air purifier
to generate less noise and consume less energy by allowing more airflow to pass through the filter
all the while keeping the same cleaning efficiency.
*The filter media performance is tested by China Testing & Inspection Institute for Household Electric Appliances (Report Number:
WCv-21-40119). Due to the technical specifications of the filter media, the test environment and parameters may differ.
* 400m³/h Particle CADR: Data from China Testing & Inspection Institute for Household Electric Appliances Inspection. Tested based on GB/T 18801-2015 standard. Report No. WCk-21-50475.
*6660L of purified air per minute: Refers to the clean air output when the product is operating at maximum output. Calculated based on the PM CADR of Xiaomi Smart Air Purifier 4.
*10min purification for a living room of approx. 20m²: In a bedroom of 20m², with a ceiling height of 3m when the device is running at maximum output, a single-cycle purification time is calculated by: room area x room height ÷ PM CADR.
*Effective coverage area of 28-48m²: Data from China Testing & Inspection Institute for Household Electric Appliances Inspection Report (No. Wck-21-50475).
* 99.97% elimination of 0.3μm particles: Data from China Testing & Inspection Institute for Household Electric Appliances Inspection. Tested based on GB/T 6165-2021 standard. Report No. WCv-21-40115.
*High-efficiency filter with a larger surface area of 22,000cm²: The surface area of filter used on the high-efficiency filter of Xiaomi Smart Air Purifier 4 was 22,000cm². Data from Smart Mi Lab, and may vary slightly due to differences between individual products.
*High-quality activated carbon content of 500,000mg: The activated carbon content of the filter used on Xiaomi Smart Air Purifier 4 is 500,000mg. Data from Smart Mi Lab, and may vary slightly due to differences between individual products.
*Low-noise 32.1dB(A) Night Mode: Refers to the noise value generated when the product is in Night Mode. Data from the China Testing & Inspection Institute for Household Electric Appliances Inspection Report (No. WCk-21-50475).
*Alexa and Google Assistant voice control features require smart voice devices to function. Related connecting devices are sold separately.
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*Google Assistant is not available in certain languages and countries. Please refer to official website for more information.
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