Clean air where you need it

Allergen removal | Smart control | Real-time air quality monitoring

Allergen removal

Dual-use for table and floor

for allergy-sensitive people

Compact size and small footprint

Automatic adjustment of purification speed

48

m²

Room size base on 2 ACPH

Visible results

with the air quality indicator

Particulate matter sensor

A peaceful and undisturbed
night's sleep

20

dB

Low energy consumption and high efficiency

27

W

3-in-1 filter

99.97

%

Traps particles as small as 0.3 microns

at a low noise level of

Maximum output power as low as

Small but powerful
Compact size and small footprint, suitable for home-wide

Dual-use desktop and floor-standing design, compact and easy to move.
Powerful performance and a steady output of clean air.

230

m³/h

360°

48

㎡

Particle CADR*

Circulation purification

Base on
2 ACPH*

Bedroom

Child's Bedroom

Fresh air eliminates exhaustion

Protect the respiratory health of children and infants

Workspace

Operate quietly, doubling your efficiency

Traps 99.97% of particles as small as 0.3 microns*
3-in-1 filtration for thorough purification

Eliminate common indoor air pollutants effectively with layer-by-layer filtration

Pollen

Dust

Smoke

Wildfire ash

Pet odours

Pet hair

Pet dander

Other odours

TÜV Rheinland Allergy Care Certification
Strict allergen filtration guaranteed

Certified by the authoritative TÜV Rheinland, Xiaomi Smart Air Purifier 4 Compact is proven to
effectively filter out allergens in the air

Take care of
allergy-sensitive individuals

Protect families with pets

Filter out allergens such as pollen, dust mites, etc.

Filter out allergens such as pet hair, dander, etc.

Smart remote control
Clean air where you need it

Remotely activate your air purifier by using the
Mi Home/Xiaomi Home app, welcoming you
home with clean and fresh air.

Timed on/off

Adjustable settings

Air quality

Child lock

Support for voice control

Call for good air remotely

*Alexa and Google Assistant voice control features require smart voice devices to function. Related connecting devices are sold separately.

One-touch Auto Mode
Real-time monitoring, high-efficiency purification

With particulate matter sensor configuration, sensitive monitoring of air quality and automatic
adjustment of purification speed, you can enjoy clean air at all times.

Particulate matter sensor

Real-time sensing of changes
in air quality

Real-time air quality monitoring
Keep an eye on changes for enhanced purification

Intuitive indoor air-quality data from four-color indicator light.
Adjust your purification settings with the simple touch control buttons, one light touch to fulfil your air-quality needs.

Auto

Sleep

Manual

Fresh and clean

Low pollution

Moderate pollution

High pollution

Customized purification area
Choose the optimal speed in one step

In manual mode, you can set the coverage area and customise the speed according to your preference.

Clean air from ultra-quiet sleep mode
Protect your sweet dreams

In Sleep Mode, noise is as low as 20dB* and the display light can be turned off.
Have a peaceful night's sleep without late-night disruptions.

20

dB

40

dB

50

dB

Light breeze (Sleep Mode for this device)

Library

Office

Low-consumption purification,
effective protection

Power can be as low as 27W, even at the maximum output.
Only 0.7kWh are needed for 24 hours of purification*.

Efficient brushless DC motor

No carbon brush friction, making it quieter and more energy efficient.

An excellent user experience,
it's all in the details

Effortless one-step filter replacement

Rotate and pull out from the bottom

Filter replacement
reminders

Simply change your filter when
recommended

Stylish appearance

Matte texture, elegant lines

The difference between Xiaomi's High Efficiency Filter and a conventional HEPA Filter

Combination of two filter technologies: Electrostatic and mechanical filtration. Xiaomi's High Efficiency Filter media can remove 99.97% of airborne particles as small as 0.1 micrometres and traps dust, PM 2.5, pollen, pet dander, smoke and even the smallest microplastics. The filtration rate of Xiaomi's High Efficiency Filter media is 99.97% for fine particles of up to 0.3 microns, and can reach up to 99.99% for particles as small as 0.1 microns.

Conventional
HEPA filter

Xiaomi's High
Efficiency Filter

Less clean air

More clean air

The HEPA filter is made of dense fibreglass to trap particles, which means that less clean air gets through the filter.

Xiaomi's filter uses melt-blown PP fibres with electrostatic technology. With greater space between fibres, larger volumes of air are able to pass through the filter.

Noisy

Low noise

Large volumes of air are forced through the dense HEPA filter, meaning a higher fan speed is required, which generates more noise.

With a lower fibre density, the filter allows air to pass through at high speeds, resulting in less noise.

Higher energy
consumption

Lower energy
consumption

In order for the HEPA filter to release more clean air, the motor must run at a higher speed, which translates into a higher energy consumption.

With a lower fibre density, Xiaomi's filter is able to release the same volume of clean air as a conventional filter, but with a much lower energy consumption.

Disclaimer: Filter media performance is tested by China Testing & Inspection Institute for Household Electric Appliances (Report Number: WCv-21-40115). Due to the technical specifications of the filter media, the test environment and parameters may differ.

Air Purifier Purchasing Guide

Xiaomi Smart Air Purifier 4 Compact

Xiaomi Smart Air
Purifier 4

Xiaomi Smart Air Purifier 4 Pro

Xiaomi Smart Air Purifier Elite

Recommended scenarios

Bedroom/Study

Bedroom/Child's bedroom

Living room/Large bedroom

Whole-house

Room size(up to)Base on 2 ACPH*

48m²

83m²

104m²

125m²

Effective coverage area

Base on GB/T 18801-2015*

16-27m²

28-48m²

35-60m²

42-72m²

Particle CADR

230m³/h

400m³/h

500m³/h

600m³/h

Other purifiable particles
(all models)

Pollen

Pet hair

Smoke

Wildfire ash

Unpleasant odours

Sensors

PM2.5 IR sensor

PM2.5 laser sensor
temperature and humidity sensor

PM2.5/PM10 dual-effect sensor
temperature and humidity sensor

PM2.5/PM10 dual-effect sensor, temperature and humidity sensor

Smart connectivity
(all models)

Maximum power ouput

27W

30W

50W

60W

Filter lifespan

6–12 months

10-14 months

Product dimensions

Φ220 x 355mm

250 x 250 x 555mm

275 x 275 x 680mm

Φ 310 × 730 mm

* 16–27m² effective coverage area: As calculated in Air Purifier (GB/T 18801-2015) Appendix F.4: Area of application = pCADR x (0.07–0.12). pCADR data from CVC Testing Technology Ltd. Report no.: WTS2022-4212.

* Traps 99.97% 0.3μm particles: According to the China Testing & Inspection Institute for Household Electric Appliances Inspection Report (No. WCv-21-40115), the filter material used for this product achieved a filtration efficiency of 99.97% for 0.3μm particles.

* 230m³/h Particle CADR: Data from CVC Testing Technology Ltd. Report no.: WTS2022-4212.

* Low-noise 20dB Sleep Mode: Refers to the noise value generated when the product is in Sleep Mode. Data from CVC Testing Technology Ltd. Report no.: WTS2022-4212.

* Only 0.7kWh are needed for 24 hours of purification: 27W x 24h ÷ 1000 = 0.684kWh. 24h power consumption of 0.684kWh, approximately 0.7kWh.

* Alexa is not available in all languages and countries. Alexa features and functionality may vary by location. Please refer to official website for more information.

* 48㎡ room size is base on 2 air changes per hour(ACPH), meaning that it can purify a 48 m² room 2 times per hour(assuming the room has a ceiling height of 2.4 m), room size = pCADR ÷ 2.4 m÷2. pCADR data from CVC Testing Technology Ltd. Report no.: WTS2022-4212.

* Room size(up to) is calculated based on 2 air changes per hour(ACPH) and PCADR, meaning that it can purify a room of this size 2 times per hour(assuming the room has a ceiling height of 2.4 m), Room size = PCADR ÷ 2.4 m÷2.

* Effective coverage area is calculated according to the Chinese national standard GB/T 18801-2015, assuming the room has a ceiling height of 2.4 m and considering factors such as the outdoor particulate pollutant concentration of 300μg/m³ and the number of air changes in buildings, the standard is more stringent. Effective coverage area=(0.07~0.12)*PCADR.