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Xiaomi Smart Air Purifier 4

Breathe clean, breathe healthy
20m² large room purification in approx. 10 minutes
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

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.

Able to purify a 20m² room in approx*

10min

All-round air intake

3600

Effective coverage area of

28-48m2

Three-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.

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.

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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* Amazon, Alexa and all related logos are trademarks of Amazon.com, Inc. or its affiliates.

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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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